Steering polyoxometalate transformation from octahedral to tetrahedral coordination by counter-cations

Polyoxometalates (POMs) are intriguing catalysts for various reactions. However, the function of their counter-cations is overlooked. Here, we show that flexible counter-cations of methyltrioctylammonium can trigger polyoxovanadates to transform from octahedrally coordinated H 2 V 10 O 28 4− to tetr...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2020-01, Vol.49 (3), p.583-587
Main Authors: Guo, Yun, Li, Hong-Yi, Zhang, Xie, Huang, Jie, Feng, Jun-Kai, Diao, Jiang, Xie, Bing
Format: Article
Language:English
Subjects:
Catalysts
Cations
Organic chemistry
Polyoxometallates
Raman spectra
Steering
Structural stability
Transformations
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Summary:Polyoxometalates (POMs) are intriguing catalysts for various reactions. However, the function of their counter-cations is overlooked. Here, we show that flexible counter-cations of methyltrioctylammonium can trigger polyoxovanadates to transform from octahedrally coordinated H 2 V 10 O 28 4− to tetrahedrally coordinated V 10 O 26 2− . This structural transformation enhances the performance tunability of POM chemistry and improves catalyst design. A previously unknown polyoxometalate transformation from an octahedrally coordinated to a tetrahedrally coordinated structure, with performance enhancement, is induced by flexible counter-cations.
ISSN:1477-9226
1477-9234
DOI:10.1039/c9dt03608c