Issue 14, 2010
From the journal:

Dalton Transactions

A functionalized polyoxometalate solid for selective oxidation of styrene to benzaldehyde†

Jing Tang,ab   Xiu-Li Yang,a   Xian-Wei Zhang,a   Miao Wanga  and  Chuan-De Wu*a  

* Corresponding authors

a Department of Chemistry, Zhejiang University, Hangzhou, P. R. China
E-mail: cdwu@zju.edu.cn

b Department of Chemistry and Chemical Engineering, Heihe University, Heihe, P. R. China

Abstract

The reaction of [Na12(H2O)38][WZn{M(H2O)}2(ZnW9O34)2]·3H2O (M = Mn, Co) and Co(NO3)2·6H2O in water at 80 °C afforded red crystals of [Co(H2O)6]2{[Co(H2O)4]2[Co(H2O)5]2WZn[Co(H2O)]2(ZnW9O34)2}·10H2O (1), which has been characterized by TGA, IR, PXRD, element analysis and single crystal X-ray diffraction. The polyanion [WZn{Co(H2O)}2(ZnW9O34)2]12− in 1 is double-linked by cobalt(II) cations to extend into a 1D anionic polymeric chain of {[Co(H2O)4]2[Co(H2O)5]2WZn[Co(H2O)]2(ZnW9O34)2}4− with partial free cobalt cations. The redox active cobalt(II) sites made compound 1 an excellent catalyst for the oxidation of styrene with high styrene conversion (up to 96%) and high benzaldehyde selectivity (up to 99%).

Graphical abstract: A functionalized polyoxometalate solid for selective oxidation of styrene to benzaldehyde

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Article information

DOI
https://doi.org/10.1039/B924041A
Article type
Paper
Submitted
16 Nov 2009
Accepted
27 Jan 2010
First published
25 Feb 2010

Dalton Trans., 2010,39, 3396-3399

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A functionalized polyoxometalate solid for selective oxidation of styrene to benzaldehyde

J. Tang, X. Yang, X. Zhang, M. Wang and C. Wu, Dalton Trans., 2010, 39, 3396 DOI: 10.1039/B924041A

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