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Issue 33, 2012
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Structural and dynamical aspects of alkylammonium salts of a silicodecatungstate as heterogeneous epoxidation catalysts

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Abstract

The structural and dynamical aspects of alkylammonium salts of a silicodecatungstate [(CH3)4N]4[γ-SiW10O34(H2O)2] [C1], [(n-C3H7)4N]4[γ-SiW10O34(H2O)2] [C3], [(n-C4H9)4N]4[γ-SiW10O34(H2O)2] [C4], and [(n-C5H11)4N]4[γ-SiW10O34(H2O)2] [C5] were investigated. The results of sorption isotherms, XRD analyses, and solid-state NMR spectroscopy show that facile sorption of solvent molecules, flexibility of structures, and high mobility of alkylammonium cations are crucial to the uniform distribution of reactant and oxidant molecules throughout the bulk solid, which are related to the high catalytic activities for epoxidation of alkenes.

Graphical abstract: Structural and dynamical aspects of alkylammonium salts of a silicodecatungstate as heterogeneous epoxidation catalysts

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Publication details

The article was received on 01 Mar 2012, accepted on 26 Mar 2012 and first published on 30 Apr 2012


Article type: Paper
DOI: 10.1039/C2DT30492A
Dalton Trans., 2012,41, 9979-9983

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    Structural and dynamical aspects of alkylammonium salts of a silicodecatungstate as heterogeneous epoxidation catalysts

    S. Uchida, K. Kamata, Y. Ogasawara, M. Fujita and N. Mizuno, Dalton Trans., 2012, 41, 9979
    DOI: 10.1039/C2DT30492A

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