Direct Observation of Contact Ion-Pair Formation in Aqueous Solution

被引:122
作者
Antonio, Mark R. [1 ]
Nyman, May [2 ]
Anderson, Travis M. [2 ]
机构
[1] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA
[2] Sandia Natl Labs, Dept Geochem, Albuquerque, NM 87185 USA
关键词
alkali metals; cluster compounds; ion pairs; polyoxometalates; small-angle X-ray scattering; X-RAY SOLUTION; SOLID-STATE; ELECTRON-TRANSFER; LINDQVIST ION; SCATTERING; COMPLEXES; HETEROPOLYNIOBATES; PRECIPITATION; ASSOCIATION; INSTRUMENT;
D O I
10.1002/anie.200805323
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Nude or neutralized? Small-angle X-ray Scattering (SAXS) measurements provide direct observation of contact ion pairing between the [Nb 6O19]8- polyoxometalate and its eight charge-balancing cesium cations in aqueous solution. The radius of gyration (Rg) for Cs8[Nb6O19] and [Nb 6O19]8- is shown. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:6136 / 6140
页数:5
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