¹⁸²Tungsten Mössbauer spectroscopy of heteropolytungstates
- Bochet, Christian G. Section of Chemistry and Biochemistry, University of Geneva, Switzerland - Chemistry Department, University of Fribourg, Switzerland
- Draper, Thérèse Section of Chemistry and Biochemistry, University of Geneva, Switzerland
- Bocquet, Bernard Section of Chemistry and Biochemistry, University of Geneva, Switzerland
- Pope, Michael T. Department of Chemistry, Georgetown University, USA
- Williams, Alan F. Section of Chemistry and Biochemistry, University of Geneva, Switzerland
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07.05.2009
Published in:
- Dalton Transaction. - 2009, vol. 26, p. 5127-5131
English
The tungsten-182 Mössbauer spectra of a series of Keggin structure heteropolytungstates, [EW₁₂O₄₀]ⁿ⁻ are reported. There is a very considerable variation in quadrupole coupling at the tungsten nucleus indicating considerable asymmetry in the electron distribution for the more electronegative elements E. The quadrupole coupling correlates well with the structural data, in particular with the distance between the tungsten and the oxygen atom of the EO₄ group. These compounds may be regarded as rigid W₁₂O₃₆ cages interacting more or less strongly with an EO₄ⁿ⁻ host. The spectra of salts of metatungstate [H₂W₁₂O₄₀]⁶⁻ and [W₆O₁₉]²⁻ are also given.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Chimie
- Language
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- English
- Classification
- Chemistry
- License
- License undefined
- Identifiers
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- RERO DOC 12959
- DOI 10.1039/B904101J
- Persistent URL
- https://folia.unifr.ch/unifr/documents/301391
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