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SUMMARY:Controlling Oxidation States for the Synthesis of New Functional Ma
 terials
LOCATION:Chemistry A101
TZID:America/Denver
DTSTART:20191001T000000
UID:2026-04-24-12-58-12@natsci.colostate.edu
DTSTAMP:20260424T125812
Description:Literature Seminar\nThe development of new functional materials
  is essential to the progression of our technology. The syntheses for mate
 rials with desired properties are necessary but challenging to control. As
  an example\, rare earth metal molybdenum oxides are a chemical group that
  offer a variety of physical properties as the molybdenum ion can accommod
 ate different oxidation states. However\, literature on this chemical fami
 ly primarily report on molybdenum oxides with oxidation states of 4+ and h
 igher. A study by the zur Loye group describes an exploratory flux-mediate
 d crystal growth experiment that has been investigated with in situ neutro
 n diffraction.1 Their study emphasizes the process involved in the crystal
  growth of La4Mo2O11. To control the oxidation state\, the researchers use
 d zinc metal as a reducing agent of the system. Interestingly\, as the rea
 gent-to-flux ratio changed\, different intermediate species with varying m
 olybdenum oxidation states were observed. This talk will elaborate on this
  study and focus on the control over oxidation states in solid-state synth
 eses.\n\n(1) Abeysinghe\, D.\; Huq\, A.\; Yeon\, J.\; Smith\, M. D.\; Zur 
 Loye\, H. C. In Situ Neutron Diffraction Studies of the Flux Crystal Growt
 h of the Reduced Molybdates La4Mo2O11 and Ce4Mo2O11: Revealing Unexpected 
 Mixed-Valent Transient Intermediates and Determining the Sequence of Event
 s during Crystal Growth. Chem. Mater. 2018\, 30 (3)\, 1187–1197. https:/
 /doi.org/10.1021/acs.chemmater.8b00072. 4:00 pm
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