Borate Accelerates Rates of Steady Oxygen–Isotope Exchange for Polyoxoniobate Ions in Water

Villa, Eric M.; Ohlin, C. André; Casey, William H.

doi:10.1002/chem.201000946

Borate Accelerates Rates of Steady Oxygen–Isotope Exchange for Polyoxoniobate Ions in Water

Journal Article · Thu Jul 29 00:00:00 EDT 2010 · Chemistry - A European Journal

DOI:https://doi.org/10.1002/chem.201000946· OSTI ID:2544385

Villa, Eric M. ^[1]; Ohlin, C. André ^[2]; Casey, William H. ^[2]

University of California, Davis, CA (United States); University of California
University of California, Davis, CA (United States)

Understanding simple oxygen exchange reactions is important to a variety of communities concerned with the chemistry of oxides with water. Limitations in the methods available for studying reactions at these oxide-water interfaces, as well as difficulties in characterizing their structures, have led to the use of polyoxometalates (POMs) as model molecules. POMs are metal-oxide ions comprised of group 5 and 6 metals. These ions constitute discrete and often soluble clusters than can be spectroscopically probed with great confidence. In addition, POMs are interesting in their own right owing to their structural and chemical diversity, and are finding an increasing number of applications. We have been investigating the oxygen-isotope-exchange kinetics in these ions and aqueous solution by ¹⁷O-Nuclear Magnetic Resonance (NMR) to help better recognize what controls molecule-water interface processes on the level of individual oxygen sites. Furthermore, these structures are chosen because the isotope-exchange reactions could be followed separately from dissociation or condensation of the structure.

View Accepted Manuscript (DOE)

Research Organization:: University of California, Davis, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB); National Science Foundation (NSF)

Grant/Contract Number:: FG02-05ER15693

OSTI ID:: 2544385

Alternate ID(s):: OSTI ID: 2507299

Journal Information:: Chemistry - A European Journal, Journal Name: Chemistry - A European Journal Journal Issue: 29 Vol. 16; ISSN 0947-6539

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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