Soluble heteropolyniobates from the bottom of Group IA

Yu Hou; May Nyman; Mark A Rodriguez

doi:10.1002/anie.201104478

Soluble heteropolyniobates from the bottom of Group IA

Angew Chem Int Ed Engl. 2011 Dec 23;50(52):12514-7. doi: 10.1002/anie.201104478. Epub 2011 Sep 7.

Authors

Yu Hou¹, May Nyman, Mark A Rodriguez

Affiliation

¹ Sandia National Laboratories, Albuquerque, NM 87185, USA.

PMID: 21901806
DOI: 10.1002/anie.201104478

Abstract

Surprising solubility: While it is already well known that [Nb(6)O(19)](8-) salts exhibit an unusual solubility trend, that is, Cs>Rb>K>Na>Li, the heteropolyniobates of Cs and Rb had not yet been crystallized. These very soluble entities have now been obtained from solution by a simple and universal process. New polyoxoniobate geometries are thus unveiled, and the [SiNb(12)O(40)](16-) Keggin ion is characterized in solution for the first time.