BEGIN:VCALENDAR VERSION:2.0 PRODID:-//ZContent.net//ZapCalLib 1.0//EN CALSCALE:GREGORIAN METHOD:PUBLISH BEGIN:VEVENT SUMMARY:Polyoxometalate catalysts in solar fuels and cancer chemotherapy LOCATION:Chemistry A101 TZID:America/Denver DTSTART:20190101T000000 UID:2026-04-29-02-02-05@natsci.colostate.edu DTSTAMP:20260429T020205 Description:About the Seminar:\n\nThe very diverse geometrical and electron ic structures of inorganic clusters\, and in particular early-transition m etal polyoxometalates (POMs)\, give these complex polyanions an extensive\ , usually reversible and tunable redox chemistry and other properties of v alue in several fields. A subset of this chemistry is that POMs are effect ive catalysts for oxidations\, including air(O2)-based oxidations\, severa l of which have been commercialized\, and water oxidation catalysts (WOCs) in conjunction with solar fuel production. The energetics\, hydrolytic ch emistry and multi-electron-transfer chemistry of POM WOCs will be discusse d\, and some conclusions of studies in this area after our intial papers ( 2008 Angew. Chem. Int. Ed.\, and 2010\, Science) will be described.\nThe s econd effort\, which is quite new\, but intriguing\, novel and promising b ased on diverse biological studies\, involves the development of a “cata lytic anticancer agent”. These POMs gets into tumor cells and once insid e catalyze the air(O2)-based oxidation of the protective antioxidants (pri marily glutathione) within the tumor cells resulting in a redox potential imbalance and death of the tumor cells. The selectivities are very high fo r a range of tumor cells versus healthy cells and we have documented actua l catalytic reactions inside living cells. The talk will finish with a loo k at some fundmental studies of ionic strength and ion pairing properties of POMs. These properties\, like redox potential\, impact nearly all other attributes and applications of POMs.\n\n \;\n\nAbout the Speaker:\n\n Dr. Craig L. Hill\, the Goodrich C. White Professor at Emory University\, has been studying catalysis\, reaction mechanisms and materials science fo r 40 years. Most of his current research focuses on solar fuels\, oxidatio n\, decontamination\, and multi-electron transfer processes\, frequently w ith an emphasis on nano-scale materials and POM derivatives. His research involves extensive structural characterization (X-ray crystallography\, NM R\, etc.)\, many spectroscopic and electrochemical techniques in addition to kinetics and most recently in operando synchrotron studies with Brookha ven National Lab (BNL) and Argonne National Lab (ANL) collaborators. Dr. H ill has trained about 140 graduate students and postdoctoral research asso ciates. Google Scholar lists over 600 publications with ~410 publications in peer-reviewed journals that have been cited ~28\,000 times (H index = 8 8). Four of these have already exceeded 1000 citations. He has been the re cipient of three ACS awards and many others and is a Fellow of AAAS\, the Victorian Institute of Chemical Sciences (VICS)\, the Academia Europaea (A E) and the Royal Society of Chemistry (RSC). 4:00 pm END:VEVENT END:VCALENDAR