Current Seminars

By Courtney Roberts
3/5/24 at 4:00pm in Chemistry A101

About the Seminar: Research in the Roberts group involves looking at unsolved problems in organic synthesis through the perspective of organometallic/inorganic chemistry. One main area of interest for the group is the synthesis of heterocycles through aryne intermediates. Despite their useful reactivity, a number of challenges still remain in the use of arynes including problems […]

By Johnathan Owen
3/22/24 at 4:00pm in Chemistry A101

By Vladan Stevanovic
3/26/24 at 4:00pm in Chemistry A101

By Timothy Warren, Ph.D.
4/16/24 at 4:00pm in Chemistry A101

By Luke Salzer
4/23/24 at 4:00pm in Chemistry A101

Current Seminars

By Paul Maggard, Ph.D.
2/27/24 at 4:00pm in Chemistry A101

About the Seminar: Metastable semiconductors have been discovered in many chemical systems that have desirable properties for driving fuel-producing redox reactions from sunlight, including broad visible-light absorption, optimal band edge energies, defect tolerance, and functional carrier mobilities. These photoelectrochemical properties have frequently been found to be associated with their metastable nature, e.g., from specific features […]

By Megan Fieser, Ph.D.
2/13/24 at 4:00pm in Chemistry A101

About the Seminar: As we strive to support our busy and demanding lifestyles, our dependence on disposable polymer items has led to a global environmental crisis. The high stability of polymers to an array of conditions that was once highlighted as a value for commercialization has now become a serious flaw. Addressing this crisis is […]

By Austin Tews
11/14/23 at 4:00pm in Chemistry A101

Abstract – TBD

By Corlyn Regier
11/14/23 at 4:00pm in Chemistry A101

Abstract: As the demands for energy generation continue to increase, clean energy technologies are crucial. A key component to many of these technologies is the use of permanent magnets (PMs). In the development of PMs, there is a push to move away from the rare earth elements (REEs) commonly used for cheaper, more abundant transition […]

By Sara Robinson
10/31/23 at 4:00pm in Chemistry A101

Abstract: A key interest in chemical synthesis research is the conversion of less desirable resources to value-added products.[1] Hydrogen peroxide is an increasingly valuable feedstock with applications as an antiseptic agent and wastewater treatment aid, a strong oxidant for chemical synthesis, and even an energy-dense catholyte for fuel cell applications.[2,3] Current synthesis methods for hydrogen […]

By Richard Reyes
10/31/23 at 4:00pm in Chemistry A101

Abstract:  Gold nanoclusters (AuNCs) are ideal models to study structure-property relationships due to their atomically precise compositions. Understanding this relationship is important for further explorations in photoluminescence and photocatalysis, which are highly relevant to industrial and academic work. The properties of AuNCs are mainly impacted by their ligand shells, the compositions of which are primarily […]

By C. Michael McGuirk, Ph.D.
10/24/23 at 4:00 pm in Chemistry, A101

Abstract: Synthetic permanently porous materials are poised to play a key role in our transition to a more sustainable society. Owing to their structural and chemical modularity, synthetic frameworks, such as metal–organic, covalent, and hydrogen-bonded networks, are uniquely amenable to realizing highly specific functionality for emergent clean energy applications. However, desired performance for many pressing […]

By Professor Charlotte K. Williams OBE FRS
10/19/23 at 4:00 pm in Chemistry, A101

About the Seminar:  Polymers are some of the highest volume products of the chemical industry but their manufacturing, use and disposal causes pollution.  Production alone is responsible for > 1 Gt/annum of carbon dioxide emissions, ~ 3 x more than the annual emissions of the UK.  Recycling options are limited and environmental contamination by legacy […]

By Nathan Neisius
10/17/23 at 4:00pm in Chemistry A101

Abstract: Despite the wide range of applications of nanoparticles, the tunability of properties and synthesis of novel materials are limited due to reaction pathways often being poorly understood. Developing an understanding of how precursors transform into active species or monomers is essential to establish targeted synthetic designs but is difficult to predict the participating species […]

By Joanne Stewart
10/10/23 at 4:00pm in Chemistry A101

Abstract: The Interactive Network of Inorganic Chemists (IONiC) has worked with inorganic chemistry instructors across the country through a two-year Fellows program. IONiC’s research with the Fellows aims to provide insight into how course reform impacts student learning. Data was collected from student surveys, student responses to content-based questions, student exam performance, faculty interviews, and […]

By Dr. Lawrence Que
10/3/23 at 11:00 am in Lory Student Center Theatre

RSVP   Abstract: At the start of my independent research career 46 years ago, I chose to explore the chemistry of a family of nonheme iron oxygenases, which had just been discovered a few years before I got started at Cornell. In this family is the only enzyme known to hydroxylate the simplest hydrocarbon, methane, which is found in […]

By Dr. Emily Que
10/3/23 at 4:00 pm in Chemistry, A101

Abstract: New Delhi Metallo-β-lactamase (NDM) grants resistance to a broad spectrum of β-lactam antibiotics including last-resort carbapenems and is emerging as a global antibiotic resistance threat. Limited zinc availability adversely impacts the ability of NDM-1 to provide resistance, but a number of clinical variants have emerged that are more resistant to zinc scarcity. To provide […]

By Parker Lee
9/19/23 at 1:00pm in CHEMR 401

Event Overview: Multi-angle light scattering (MALS) remains a critical tool for characterization of polymers. In combination with separation by size-exclusion chromatography (SEC), MALS enables determination of molar mass distributions without relying on reference standards, making it invaluable for the analysis of polymers for which such standards do not exist, including novel homopolymers, block copolymers, and […]

By Raphaële Clément, Ph.D.
9/8/23 at 4:00pm in Chemistry A101

Abstract: Batteries have transformed our daily lives and hold the key to a low carbon future. Yet, current Li-ion chemistries are approaching their theoretical performance limit. Remarkably, we continue to rely on a limited subset of Li-ion battery materials –– most commercial cathodes derive from LiCoO2 developed in 1980 –– that cannot meet our ever-growing need […]

By Joseph Zadrozny, Ph.D.
5/30/23 at 4:00 pm in Chemistry, A101

Abstract: My group is a physical inorganic chemistry group devoted to understanding how to control spin (unpaired electrons and magnetic nuclei) with synthetic, molecular inorganic chemistry. Broadly, our efforts are largely fundamental, exploring how different functional groups, counterions, etc, all manipulate magnetic properties, much like a synthetic chemist would tune a molecule to target a desired reactivity. […]

Roxanna Martinez - Colorado State University
By Roxanna Martinez
5/2/23 at 4:00pm in Chemistry A101

Research Seminar- Metal complexes are promising candidates for spin applications spanning from magnetic resonance imaging to quantum information processing. A key challenge in advancing these applications is fundamentally understanding how to generate long spin relaxation times (T1, T2) in magnetic environments. A major contributor to this challenge is the presence of other magnetic nuclei in […]

By Marie Heffern, Ph.D.
4/25/23 at 4:00pm in Chemistry A101

About the Seminar The context in which a metal resides within a biological environment significantly influences its activity in function. Recent years have seen a rise in tools for monitoring metal ions and have illuminated the diversity in metal speciation in biology, but many of these tools are focused on probing metals in the intracellular […]

By Jeffrey Rinehart, Ph.D.
4/11/23 at 4:00pm in Chemistry A101

About the Seminar On the nanoscale, magnetic order gives way to a fundamentally different behavior, enhancing the role of phonon coupling and giving rise to superparamagnetism, a distinct behavior combining the large moment of collective permanent magnetism with the equilibrium kinetics of paramagnetism. Superparamagnetism has rich functionality, finding applications at the intersections of diverse fields […]

By Scott Daly, Ph.D.
3/28/23 at 4:00 pm in Chemistry A101

About the Seminar Tandem catalysts that catalyze two different organic transformations in a single pot are highly desirable because they enable atom-efficient, multi-component assembly of complex molecules from simple building blocks. Tandem one-pot reactions collapse the synthesis timeline, limit material loss, and can reduce operational costs because they do not require workup and purification after […]

By Joshua Telser, Ph.D.
11/29/22 at 4:00pm in Chemistry A101

About the Seminar Molecular complexes of early transition metals are of interest as catalysts for the production of fine chemicals or polymers. One important feature of some such complexes is their paramagnetism, which can be studied by nuclear and electron paramagnetic resonance (i.e., NPR and EPR) spectroscopy. In cases where there is more than one […]

George Stanley, Ph.D.
By George Stanley, Ph.D.
11/14/22 at 4:00pm in Chemistry A101

Join us for the November Colorado ACS Meeting What to Do When Your Published Results Are Questioned Presentation by: Dr. George Stanley Colorado State University & Louisiana State University Chair-Elect of Colorado Section of ACS Monday, Nov. 14, 2022, 4:00 pm, A101 Colorado State University 1301 Center Ave., Fort Collins, Colorado 80523   About the […]

By Michael Marshak, Ph.D.
10/25/22 at 4:00pm in Chemistry A101

About the Seminar: Widespread adoption of renewable energy is limited by the lack of low-cost long-duration energy storage. Redox flow batteries (RFBs) are an attractive option to meet this energy storage need because their power and energy components can be scaled independently by storing energy with redox-active materials dissolved in solution. To date, RFB electrolytes […]

By David Lacy, Ph.D.
10/24/22 at 1:00pm in Yates 102/103

Informal Inorganic Seminar

By Jamie Neely, Ph.D.
10/11/22 at 4:00pm in Chemistry A101

About the Seminar: First row transition metals present opportunities for the discovery of novel catalytic transformations enabled by their distinct reactivity. Iron complexes are especially attractive as transition metal catalysts given that iron is generally nontoxic and is the most abundant d-block metal in the Earth’s crust. Research in the Neely focuses on the development […]

By Alexandra Velian, Ph.D.
9/27/22 at 4:00pm in Chemistry A101

About the Seminar A central research goal in the Velian group is to create next-generation single atom catalysts poised to harness the cooperativity between the active site and chemically non-innocent supports. To emulate defect sites in inorganic heterogeneous catalysts in a controlled fashion, we embed well-defined active sites on the surface of clusters and 2D […]

By Ian Moseley
9/20/22 at 4:00pm in Chemistry A101

About the Seminar: Control of electronic spin relaxation, via synthetic chemistry, is an important area of research for quantum information technology and next-generation medical imaging techniques. In particular, when considering the electronic relaxation of discrete molecules, the local environment (including nearby spins) plays a significant role in the rate at which spins relax. In this […]

By David Milstein, Ph.D.
9/13/22 at 4:00pm in Chemistry A101

A Boulder Scientific Distinguished Lecture  About the Talk: Design and development of sustainable, environmentally benign catalytic reactions for organic synthesis and for energy-related processes are major goals of current catalysis. We have developed new efficient, environmentally benign reactions catalyzed by pincer-type transition metal complexes, including complexes of earth-abundant metals. Several of these reactions either produce […]

By Matthew McDermott
4/26/22 at 4:00pm in Chemistry A101

Visiting Scientist Seminar About the Seminar: The synthesis of inorganic materials, particularly via solid-state routes, often results in unexpected and/or unwanted product phases. While these phases are typically referred to as “kinetic” products, their formation can often be rationalized through careful application of thermodynamics at solid interfaces within an “open” framework, where chemical potentials of […]

By Anthony Campanella
4/19/22 at 4:00 PM in Chemistry A101

About the Seminar: Electron Paramagnetic Resonance Imaging (EPRI) stands to vastly improve the capabilities of non-invasive medical imaging techniques by harnessing the sensitivity of electronic spins. In order for this technique to reach viability, a fundamental understanding of how to design the necessary imaging agents is imperative. Much research has been conducted into EPRI imaging […]

By Barbara A. Reisner, Ph.D.
3/29/22 at 4:00 pm in Virtual Seminar - Zoom

About the Seminar: A significant body of research is focused on student understanding of chemical concepts, particularly in general chemistry, organic chemistry, and biochemistry. Few investigations have focused on more advanced courses. As part of the VIPEr Fellows project to study foundation-level inorganic chemistry courses, faculty from eighteen institutions used a series of open-ended questions […]

By Thomas Morrison
2/15/22 at 4:00 PM in Chemistry A101

Unlike higher spin systems, the source of slow magnetic relaxation in S = ½ single molecule magnets is non-intuitive. Herein the magnetic and structural properties of several low spin Ni(III) systems are investigated in attempt to understand why such a system is able to undergo slow magnetic relaxation. Analyses of a bisulphate containing system suggest […]

By Alina Schimpf, Ph.D.
2/8/22 at 4:00 pm in Chemistry A101

About the Seminar: This talk will cover research being conducted in the Schimpf Lab, which focuses on solution-phase syntheses of inorganic solid-state materials. The talk will contain two parts: colloidal semiconductor nanocrystals and cluster-based coordination assemblies. In the first part, I will discuss the use of colloidal synthesis to access metastable phases of transition metal […]

By Ian Anderson
11/9/21 at 4:00 pm in Chemistry A101

Research Seminar: Understanding the physical and chemical behavior of metals is paramount for their development into materials. The frontier of metallurgical research exists at the nanoscale, specifically in the size regime of 1-3 nm where species known as atomically precise clusters predominate. These can be viewed as soluble metallic crystallites with exact formula protected by […]

By Dan Windsor
11/2/21 at 4:00 PM in Chemistry A101

Literature Seminar: Lithium Metal Batteries (LMBs) are an exciting alternative to Lithium-ion Batteries (LIBs) due to the theoretical capacity of Li-metal anodes (3861 mAh/g). Despite this excitement, LMBs are plagued by gross instability during the Li plating/stripping process, which is thought to result from the formation of an unstable Solid-electrolyte Interphase (SEI). Much work has […]

By Emily Storck
11/2/21 at 4:00 PM in Chemistry A101

Literature Seminar: Oxynitrides and their ability to be synthesized are an important facet in the solid-state chemistry field. Their properties are more tunable than in their single-anion counterparts as anions exhibit different characteristics (i.e. electronegativity) that contribute to the overall properties of the material. However, difficulty in their synthesis arises due to the intrinsic stability […]

By Claire Shugart
10/26/21 at 4:00 pm in Chemistry A101

Literature Seminar: Achieving luminescence with earth abundant metals at room temperature is a difficult task to this day. Minimal overlap between ligand and 3d orbitals means there are more low energy metal centered states which favor non radiative relaxation back to the ground state rather than luminescence. Prior to a 2020 report1 of the vanadium(III) […]

By Luke MacHale
10/5/21 at 4:00 pm in Chemistry A101

Literature Seminar Chalcogen bonding is a non-covalent interaction involving a Lewis acidic chalcogen (S, Se, Te) atom and a Lewis basic nucleophile that largely involves electrostatics, charge-transfer, and dispersion as well as reduction of repulsion to form an interaction that is generally stronger than hydrogen bonding (15-20 kcal mol-1).1 Non-covalent interactions are key functions of ion-transport […]

By Shannon Boettcher, Ph.D.
9/14/21 at 4:00 PM in Chemistry A101

About the Seminar: Commercialized membrane electrolyzers use acidic proton exchange membranes (PEMs). These systems offer high performance but require the use of expensive precious-metal catalysts such as IrO2 and Pt that are nominally stable under the locally acidic conditions of the ionomer. I will present our efforts to study and develop alternative electrolysis platforms. First, […]

By Cassidy Jackson
5/4/21 at 4:00 PM in Virtual Seminar

Research Seminar Achieving control of magnetic relaxation in molecules is an important goal for molecular spintronics, quantum information, and biomedical imaging. The main hurdle to using molecules in the foregoing applications is a lack of fundamental understanding of precisely how the environment modulates spin relaxation times (T1, T2). One part of this challenge is the presence […]

By Amanda Kale
4/27/21 at 4:00 PM in Virtual Seminar

Research Seminar Nanoparticles are used in a variety of areas, such as optoelectronics, medicine, and energy generation and storage. Different applications necessitate nanoparticles of different compositions and morphologies. Thus, developing fine synthetic control over phase and morphology is of interest to the field. Solution-phase nanoparticle synthesis allows control over particle shape and size, though phase […]

By Max Kudisch
4/6/21 at 4:00 PM in Virtual Seminar

Research Seminar Nickel-catalyzed cross coupling reactions driven by light represent a family of promising new methods to furnish carbon-hetoatom (C-N, C-O, and C-S) bonds which are highly sought after in medicinal and process chemistry, as well as in other fields. The development of a novel C-N bond formation method between aryl halides and amines that […]

By Jaclyn Brusso, Ph.D.
3/16/21 at 4:00 PM in Virtual Seminar

Join Zoom Meeting Meeting ID: 918 4000 7092 Passcode: 383641 Join by SIP

By Tyler Ozvat
3/9/21 at 4:00 PM in Virtual Seminar

Research Seminar MR thermometry would enable powerful biomedical applications with the design of novel cobalt-59 spin-base probes. Yet unrealized is the strong temperature dependence of structure-function relationship between ligand and nuclear spin in various cobalt complexes. Herein, a series of Co-N6 complexes is investigated to understand how to control temperature dependent nuclear spin properties of […]

By Rob Tuttle
2/23/21 at 4:00 PM in Virtual Seminar

Research Seminar Catalytic generation of nitric oxide (NO) at material surfaces improves implanted medical device performance. Devices containing the metal-organic framework (MOF) [(Cu4Cl)3–(BTTri)8] (CuBTTri) catalyze NO release from the endogenous tripeptide S-Nitrosoglutathione (GSNO). MOFs are hybrid inorganic-organic materials that are promising heterogeneous catalysts due to their tunability, well-defined geometry, porosity, and high surface area. We […]

By Eric Bloch, Ph.D.
2/16/21 at 4:00 PM in Virtual Seminar

About the Seminar: Porosity in network solids, including zeolites, activated carbons, and metal-organic frameworks, has been widely interrogated for decades. In molecular metal-organic systems, however, it is a relatively novel phenomenon. This is somewhat surprising given the fact that porous organic cages can display surface areas that rival those of metal-organic frameworks. This talk will […]

By Daniel Gamelin, PH.D.
1/26/21 at 4:00 PM in Virtual Seminar

About the Seminar: Yb3+-doped lead-halide perovskites (Yb3+:CsPb(Cl1-xBrx)3) have recently emerged as unique materials combining strong, tunable broadband absorption with near-infrared photoluminescence quantum yields (PLQYs) approaching 200% at ambient temperature. These remarkable properties make Yb3+:CsPb(Cl1-xBrx)3 an extremely promising candidate for spectral shaping in various solar-energy-conversion devices. This talk will describe some of our group’s recent research […]

By Evan Miller
12/8/20 at 4:00 PM in Virtual Literature Seminar

By Professor Dinorah Gambino
10/27/20 at 4:00 PM in Virtual seminar

The diseases produced by trypanosomatid parasites, like American Trypanosomiasis (Chagas disease), Human African Trypanosomiasis (sleeping sickness, HAT) and Leishmaniasis constitute an urgent health problem gathered in the poorest regions of the world. These diseases are highly prevalent and classified as neglected tropical diseases (NTDs) by the World Health Organization (WHO) due to low historical investment […]

By Professor John Anderson, Ph.D.
10/20/20 at 4:00 pm in Virtual Seminar

Nature has inspired inorganic chemists to look beyond the immediate coordination sphere of complexes to tune and optimize reactivity. Two important themes have been the use of pendant proton donors/acceptors as well as incorporating redox-active moieties into ligand scaffolds. However, nature does not limit itself to an “either/or” strategy, and uses both of these features […]

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By Brennan McBride
10/13/20 at 4:00 PM in Virtual Literature Seminar

The need for new metastable materials with exotic properties is at an all-time high. The Department of Energy has made it a primary research direction to investigate materials discovery using extreme synthesis conditions. Pressure can be used as a kinetic trap to stabilize or discover compounds that cannot be synthesized under ambient conditions. The high-pressure […]

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By Luke Salzar
10/13/20 at 4:00 PM in Virtual Literature Seminar

The rise of electronic devices developed and utilized around the world requires having a diverse set of energy storage devices with different properties. Pseudocapacitors have the potential to be used in devices where traditional energy storage devices fall short by possessing both high energy and power. Pseudocapacitors accomplish this by storing energy via a redox […]

By Professor Chris Ackerson
10/6/20 at 4:00 PM in Virtual Seminar

Three vignettes on chemical synthesis comprise this talk. The first, related to Molecular Biology, describes the development of proteins that control the elemental composition, size and shape of inorganic nanoparticles are synthesized by these genetically engineered proteins. Because protein sequence is defined by DNA sequence and DNA is cloned during replication, these nanoparticles are termed […]

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By Kanda Borgognoni
9/15/20 at 4:00 PM in Virtual Research Seminar

Biological microscopic studies, once revolutionized by the discovery of clonable fluorophores like Green Fluorescent Protein (GFP), engender foundational evidence for cellular processes via in situ protein labeling and tracking by fluorescence. As light microscopy is inherently diffraction limited, electron microscopy (EM) unveils details of cellular ultrastructure with nanometer scale resolution. The primary challenge of biological […]

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By Jewels Fallon
9/8/20 at 4:00 PM in Virtual Seminar

Research Seminar Solid-state synthesis, especially at low-temperatures (T ≤ 400 ◦C) can be difficult due to the limited number of well-known and understood synthetic techniques and the barrier of solid-state diffusion that can inhibit reactivity. Flux reactions, traditionally involving inorganic melts, are one technique used to overcome solid-state diffusion at reduced temperatures. This research explores […]

By Joe Zadrozny
8/25/20 at 4:00 PM in Virtual seminar

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By David Lacy, Ph.D.
2/18/20 at 4:00 pm in Chemistry A101

About the Seminar: Synthetic iron-based catalysts that functionally model iron dependent oxygenases are rare. Considering the large number of synthetic iron complexes, why is this? We are taking a close look at this question and, in the process, have come up with some design principles that are guiding our work towards developing synthetic iron-based catalysts […]

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By Ellen Matson, Ph.D.
1/28/20 at 4:00 PM in Chemistry A101

About the Seminar: The Matson Group is investigating the synthesis, characterization and reactivity of multimetallic metal-oxide assemblies. Our principle interests rest in the exploration of unique redox properties and cooperative reactivity of heterometallic assemblies for multielectron chemical processes. Here, we report the synthesis and characterization of a family of vanadium oxide clusters, which serve as […]

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By Carly Jewell
12/1/20 at 4:00 PM in Virtual Research Seminar

Research Seminar One of the challenges facing the world is the need to fulfill the growing demand for energy via renewable resources while minimizing CO2 emissions. Photoelectrochemical water splitting into hydrogen and oxygen is one such system capable of renewable solar energy conversion. Previously, we developed a water-oxidation photoanode consisting of nanostructured SnO2 coated with […]

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By Roxanna Martinez
11/17/20 at 4:00 PM in Virtual Literature Seminar

Literature Seminar Metal organic frameworks (MOF) have become of interest for application in radioactive environments as studies have shown γ-irradiation resistance in MOFs. MOFs are synthetically tunable which provides an advantage for a variety of applications. However, there is not a great understanding of what properties make MOFs resistant to radiation. This talk will focus on γ-irradiation […]

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By Nathan Neisius
11/17/20 at 4:00 PM in Virtual Literature Seminar

Literature Seminar Magic-sized clusters (MSCs) have recently been of interest as precursors in the synthesis of nanoparticles of potentially useful materials. They can be used to produce a narrower size distribution of the resulting nanoparticles (as opposed to simple salt precursors), and can be used to control morphology. However, the role of MSCs on the […]

By Prof. Julia Zaikina
11/10/20 at 4:00 PM in Virtual seminar

Materials discovery can be accelerated by the development of synthesis methods and in-situ characterization techniques allowing for the rapid “screening” of multicomponent systems, while theoretical predictions of new compounds’ structure and thermodynamic stability can yield the desired roadmap for the targeted synthesis. However, the sluggish kinetics of solid-state reactions entails the necessity of high temperatures […]

By Phillip Window
11/3/20 at 4:00 PM in Virtual Research Seminar

Research Seminar Gold nanoclusters have unique properties and solvable structures which allows for interesting investigations into the origins of their properties for various applications from a core prospective and a ligand prospective. With superatomic orbitals, they present new avenues to different chemistry including orbitals that are not seen in other materials. Within this study, the electronic structure and magnetism of larger gold nanoclusters is […]

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By Shane Ardo, Ph.D.
11/19/19 at 4:00 pm in Chemistry A101

About the Seminar Protonic (H+) processes that occur in water in the dark are identical to electronic (e–) processes that occur in semiconductors in the dark; for this reason, my team defines water as a protonic semiconductor. Using this fact, over a half-century ago Prof. John Bockris demonstrated that hydrated bipolar ion-selective membranes can form […]

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By Ian Moseley
11/12/19 at 4:00 pm in Chemistry A101

Literature Seminar My literature seminar will investigate recent advances in the field of metal-free catalysts for the reduction of dinitrogen to ammonia. Ammonia is a critical component of fertilizers, and is not produced naturally in large quantities. The nitrogen reduction reaction is one of the most important industrial chemical processes, as it enables the mass […]

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By Anthony Campanella
11/12/19 at 4:00 pm in Chemistry A101

Literature Seminar Targeted alpha therapy represents an underdeveloped area of cancer treatment. Alpha particles have demonstrated a high degree of cytotoxicity, which when harnessed, can be effective at inducing apoptosis in cancer cells. However, due to the low natural abundance of alpha-emitting radioisotopes and their sparsely studied chemistry, Radium-223 is the only FDA approved radioisotope […]

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By Kate Kostenkova
11/5/19 at 4:00 pm in Chemistry A101

Literature Seminar Photodynamic therapy (PDT) is an emerging cancer treatment based on the interactions between light, a photosensitizing drug and oxygen, which create reactive oxygen species (ROS), killing cells in a localized region. Although PDT is efficient for the local destruction of tumors, the treatment is still ineffective in systemic tumor elimination, so other treatment […]

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By Kate McMahon
10/22/19 at 4:00 PM in Chemistry A101

Literature Seminar Heavy metal detection has received significant attention in recent years due to the increasing risk to human health and surrounding ecosystems. Here, the term heavy metal will encompass transition and post transition metals. Heavy metals that pose concern can span from biologically relevant transition metals like copper and zinc, to post transition metals […]

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By Craig Hill, Ph.D.
10/15/19 at 4:00 PM in Chemistry A101

About the Seminar: The very diverse geometrical and electronic structures of inorganic clusters, and in particular early-transition metal polyoxometalates (POMs), give these complex polyanions an extensive, usually reversible and tunable redox chemistry and other properties of value in several fields. A subset of this chemistry is that POMs are effective catalysts for oxidations, including air(O2)-based […]

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By John F. Berry, Ph.D.
10/8/19 at 4:00 pm in Chemistry A101

About the Seminar: Ammonia has arisen as an attractive potential large-scale energy carrier due to its improved storage and transport over hydrogen, provoking calls to explore a potential Nitrogen Economy. Two fundamental technologies are needed in order to realize a zero-carbon nitrogen energy economy: (1) Ammonia synthesis from solar electricity, and (2) high-performance direct ammonia […]

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By Ana de Bettencourt Dias , Ph.D.
10/1/19 at 4:00 pm in Chemistry A101

About the Seminar: The luminescence of lanthanide ions is based on f-f transitions. Due to the core nature of the 4f orbitals involved in the process, as well as the forbidden nature of these transitions, the emission properties make these ions uniquely suited for a variety of applications involving light emission, such as lighting, imaging, […]

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By Joe Zadrozny, Ph.D.
9/10/19 at 4:00 pm in Chemistry A101

Overview of Inorganic Program

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By Brooke Livesay
4/23/19 at 4:00 pm in Chemistry A101

Research Seminar Abstract The electronic absorption and magnetic properties of iron(II) are vastly different depending on the spin state. Iron(II) can reversibly switch its spin state through perturbation, like temperature, intermolecular interactions, coordination environment, or moderate changes on the ligand (e.g. isomerization, protonation). However, to our knowledge, there are no reports of spin state switching […]

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By Emilie Ringe, Ph.D.
4/9/19 at 4:00 pm in Chemistry A101

About the Seminar Most plasmonic metals studied to date are composed of either Cu, Ag, and Au. The former two can pose significant challenges related to oxidation, the latter is often perceived as cost-prohibitive, and all three are rare. Recently, much attention has been focused on earth-abundant Al, which is an excellent plasmonic in the […]

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By Justin Joyce
3/26/19 at 4:00 pm in Chemistry A101

Research Seminar Abstract The possession of a low-spin (LS) and high-spin (HS) state of Fe(II) coordination complexes has important implications for its spin crossover (SCO) and excited state properties. A DFT empirical dispersion correction is modified to more accurately calculate the spin state energetics of Fe(II) SCO complexes. This developed functional is used in tandem […]

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By Patrick Woodward, Ph.D.
3/12/19 at 4:00 PM in Chemistry A101

About the Seminar The AMX3 (A = Cs, Rb, CH3NH3; M = Pb, Sn, Ge; X = I, Br, Cl) halide perovskites have drawn a tremendous amount of attention in recent years. Their electrical and optical properties are comparable to conventional compound semiconductors, which makes them potentially suitable for many applications, including solar cells where power […]

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By Brandi Cossairt, Ph.D.
3/5/19 at 4:00 PM in A101

About the Seminar:  Research in the Cossairt lab is focused on the solution-phase synthesis of chemical systems capable of sunlight absorption, color-pure emission, charge transfer, and fuels generation. Towards this end we seek to address fundamental challenges in the field of inorganic chemistry, specifically controlling the composition, structure and function of nanoscale light absorbers and […]

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By Chris Whitehead
2/26/19 at 4:00 PM in Chemistry A101

Research Seminar Abstract The kinetics and molecular mechanism of nucleation are investigated in molecular detail starting from [(1,5-COD)IrI(NCCH3)2][BF4], 1, which upon addition of HPO42– to 1 forms a neutral, phosphate-bridged species, {[(1,5-COD)IrI(NCCH3)]2•HPO4}0, 2, en route to {[(1,5-COD)IrI•HPO4]2[Bu4N]2}, 3. 1H NMR solution speciation and Signer apparatus solution molecular weight studies establish that in situ prepared {[(1,5-COD)IrI•HPO4]2}2–, […]

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By Jeffrey Ma
2/19/19 at 4:00 PM in Chemistry A101

Research Seminar Abstract Commercial industries currently utilize graphite as the primary lithium anode material for secondary batteries. Graphite’s gravimetric capacity, however, has already been fully utilized and materials with higher capacities are more desirable for the advancement of next generation applications, such as electric vehicles. Of these materials, intermetallic alloys such as SnSb are of […]

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By James Boncella, Ph.D.
2/12/19 at 4:00 pm in Chemistry A101

About the Seminar In this talk, I will present our work on uranium mono- and bis-imido complexes in various oxidation states and what we have learned about the role of covalency in stabilizing the U=N interaction. The synthesis of high oxidation state, U(V-VI), complexes from lower oxidation state, U(III-IV) starting materials is driven by the […]

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By Michael Nippe, Ph.D.
2/5/19 at 4:00 pm in Chemistry A101

About the Seminar: The first part of the presentation will introduce our methodology towards improving molecular catalysts for energy relevant conversions. We strategically introduce redox-active and slightly acidic imidazolium moieties into the secondary coordination sphere of molecular CO2 reduction electrocatalysts. Results from systematic comparative studies will be presented that strongly suggest that mechanistic details of […]

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By Eve Mozur
1/29/19 at 4:00 PM in Chemistry A101

Research Seminar Abstract: When used as the active semiconductor in photovoltaic devices, hybrid perovskites preform competitively with industry standard materials, including silicon and cadmium telluride. However, hybrid perovskites are structurally distinct from conventional inorganic semiconductors and therefore have unique structure-property relationships. In particular, although unsubstituted hybrid perovskites degrade under ambient conditions, empirical evidence demonstrates that […]

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By Jillian Dempsey, Ph.D.
1/17/19 at 4:00 pm in Chemistry A101

About the Seminar The conversion of energy-poor feedstocks like water and carbon dioxide into energy-rich fuels involves multi-electron, multi-proton transformations. In order to develop catalysts that can mediate fuel production with optimum energy efficiency, this complex proton-electron reactivity must be carefully considered. Using a combination of electrochemical methods and time-resolved spectroscopy, we have revealed new […]

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By Susannah Scott, Ph.D.
10/29/19 at 4:00 pm in Chemistry A101

A Boulder Scientific Distinguished Lecture About the Talk: Heterogeneous catalysts are indispensable in large-scale chemical processes. Adapting catalysts optimized for converting fossil-fuel-derived molecules to handle renewable carbon is a major challenge, imposed by differences in volatility and solubility. The kinetics of liquid phase transformations promoted by heterogeneous catalysts are complicated by partitioning of solvents, reactants, […]

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By Tyler Ozvat
11/6/18 at 4:00 PM in Chemistry A101

Literature Seminar Abstract Within the past decade, new isolable lanthanide compounds of the 2+ have been achieved for the entire lanthanide series. Previously thought to be inaccessible due to high reduction potentials, these compounds display unique ground state electronic structures. These states provide an exciting opportunity to examine the photochemical properties via ligand environment of […]

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By Max Kudisch
11/6/18 at 4:00 PM in Chemistry A101

Literature Seminar Abstract Pt(II) complexes have been extensively investigated as emitter dopants for organic light emitting diodes (OLEDs). A dopant greatly increases OLED efficiency due to the ability of the dopant to emit at room temperature from a triplet excited state. Triplet states represent the majority of excited states formed in OLED emitters during operation […]

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By Morris Bullock, Ph.D.
10/30/18 at 4:00 pm in Chemistry A101

Solar and wind are carbon-neutral, sustainable energy sources, but because they are intermittent, reliable energy storage is needed. Catalysts that efficiently interconvert between electrical energy and chemical bonds (fuels) are needed for sustainable, secure energy. Electrocatalysts based on inexpensive, earth-abundant metals (“Cheap Metals for Noble Tasks”) are needed. Ni complexes with “P2N2” ligands have been […]

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By A. Dean Sherry, Ph.D.
10/23/18 at 4:00 PM in A101

About the Seminar: Magnetic resonance imaging (MRI) is often considered too insensitive for molecular imaging of biological processes. Although many Gd3+-based contrast agents have been reported in the chemistry literature over the past 30 years, only a few have been demonstrated to provide important biological information in vivo. A key parameter in the design of […]

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By Stosh Kozimor, Ph.D.
10/16/18 at 4:00 PM in Chemistry A101

About the Seminar: Actinides in the +3 oxidation state occupy central roles in many areas that are important for our quality of life. These range from developing targeted alpha therapy in treating cancer to processing spent nuclear fuel. Hence, there is pressing need to advance fundamental understanding of +3 actinide coordination chemistry. While numerous heroic […]

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By Jamie Neilson, Ph.D.
10/9/18 at 4:00 PM in Chemistry A101

Seminar Abstract: A significant challenge in chemistry research is to rationally control structure-property relationships in materials to achieve desired properties. The prevailing approach to this challenge involves the serendipitous discovery of materials or the incremental modification of solid-state reactions. Therefore, the search for new materials is often limited by phase equilibria or is inhibited by […]

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By Manuel Pena
10/2/18 at 4:00 PM in Chemistry A101

Literature Seminar Abstract Mixed-lanthanide metal-organic frameworks (M’LnMOFs) have received wide attention for their use as highly sensitive ratiometric luminescent thermometers. Their high resolutions and non-invasiveness have made them strong candidates for applications such as intracellular sensing and thermal mapping. Unfortunately, materials and techniques for sensing in the physiological temperature range (298-318 K) or higher are […]

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By Tom Morrison
9/25/18 at 4:00 pm in Chemistry A101

Literature Seminar Abstract Single molecule magnets have been shown to be capable of performing as a quantum bit, or qubit, which is predicted to revolutionize the world of computing. However current day single molecule magnets only exhibit magnetic hysteresis, and thus can only act as a qubit, below liquid nitrogen temperatures. In 2014 a study […]

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By Amanda Kale
9/25/18 at 4:00 pm in Chemistry A101

Literature Seminar Abstract Self-assembly has occurred in nature since the beginning of time, but only in the past 30 years has the term found its way into chemical literature to describe autonomous organization in various systems, from monolayers to nanoparticle superstructures. Nanoparticle self-assembly can be used as a high throughput method for the fabrication of […]

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By Cassidy Jackson
9/18/18 at 4:00 pm in Chemistry A101

Literature Seminar Abstract: Metalloenzymes drive chemical processes across life forms and mimicking this reactivity still remains a synthetic challenge. Almost all metalloenzyme active sites are composed of transition metals. In 2007 in volcanic mudpools in southern Italy, the bacteria Methylacidiphilum fumariolicum was discovered with an enzyme containing a lanthanide active site in a methanol dehydrogenase […]

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By Bob Waymouth
9/4/18 at 4:00 pm in Chemistry A101

We have developed a family of selective organic catalysts for ring-opening polymerization reactions.1,2  In parallel efforts, we have developed new oxidation catalysts2 that generate new monomers which were then enchained using organocatalytic polymerization1 to generate functional materials that proved useful agents for the delivery of messenger RNA into living animals.4-6 Functional delivery of messenger RNA […]

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By Robert J. Nielsen, Ph.D.
7/24/18 at 4:00 pm in Chemistry A103

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By Andrew Bissette
6/22/18 at 4:00 PM in ChemistryA101

The Nature Research portfolio includes the flagship Nature title, the physical and life sciences research journals, such as Nature Chemistry, and the open-access titles including the newly launched Communications Chemistry. During the first part of the talk Andrew will discuss the different aims and scopes of the various Nature titles as well as the relationship […]

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By Jenny Yang
4/10/18 at 4:00 pm in Chemistry A101