The [Ti12Nb6O44]10– Ion—A New Type of Polyoxometalate Structure

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

doi:10.1002/anie.200801883

The [Ti₁₂Nb₆O₄₄]^10– Ion—A New Type of Polyoxometalate Structure

Journal Article · Wed Jul 09 00:00:00 UTC 2008 · Angewandte Chemie (International Edition)

DOI:https://doi.org/10.1002/anie.200801883· OSTI ID:2543077

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

University of California, Davis, CA (United States)

Titanates and niobates are among the most promising materials to catalyze the photolysis of water to yield molecular hydrogen and oxygen. Solid-phase titanoniobate species, such as MTiNbO₅ (M=H, Li, K), have been attracting significant interest, but to our knowledge only one discrete homoleptic polyoxotitanoniobate cluster has so far been described, the cluster Na₈[Ti₂Nb₈O₂₈]. Herein we describe a second discrete homoleptic polyoxotitanoniobate cluster and a whole new class of polyoxometalates (POMs). This titanoniobate anion, [Ti₁₂Nb₆O₄₄]^10–, is about 1.5 nm in size, is stable in water at near-neutral pH, and, most interestingly, has a central cavity. As a result, it is most similar to, but much larger than, the Lindqvist ions and the central cavity is unique.

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)

Grant/Contract Number:: FG02-05ER15693

OSTI ID:: 2543077

Alternate ID(s):: OSTI ID: 2507320

Journal Information:: Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 30 Vol. 47; ISSN 1433-7851

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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