Issue 38, 2012
From the journal:

Dalton Transactions

Two wheel-like polytungstates obtained by incorporation of two {Cu4} clusters and two molybdenum centers in the {W48} wheel†

Zhu-Jun Liu,a   Zhi-Ming Zhang,*a   Hai Fu,a   Yang-Guang Li,a   Wei-Lin Chen,a   Hai-Hong Wua  and  En-Bo Wang*a  

* Corresponding authors

a Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Renmin Street No. 5268, Changchun, Jinlin, P.R. China
E-mail: zhangzm178@nenu.edu.cn, wangeb889@nenu.edu.cn

Abstract

Two new {P8W48} wheel-based compounds, Na12Li16{[Cu(H2O)]2[Cu4(OH)4(H2O)8]2P8W48O184}·55H2O (1), and K4Na24Li10{(MoO2)2(P8W48O184)}·61H2O (2) have been synthesized by a conventional aqueous solution method, and characterized by UV, IR, TG analysis, XPRD, 31P NMR, XPS, single-crystal X-ray diffraction analyses, magnetic study and electrochemistry study. In compound 1, a wheel-type {P8W48} containing two {Cu4} clusters and two isolated Cu cations results in a 10-Cu-containing polyoxotungstate, which represents the first {P8W48}-based compound trapping two transition metal (TM) clusters in its inner cavity. Further, the polyoxoanion was connected by Na+ and Li+ cations into a 3D framework. Compound 2 is a 2-Mo-containing {P8W48}-based polyoxotungstate. Magnetic study indicates that antiferromagnetic interactions exist in compound 1.

Graphical abstract: Two wheel-like polytungstates obtained by incorporation of two {Cu4} clusters and two molybdenum centers in the {W48} wheel

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Supplementary files

Article information

DOI
https://doi.org/10.1039/C2DT30742A
Article type
Paper
Submitted
03 Apr 2012
Accepted
30 Jul 2012
First published
01 Aug 2012

Dalton Trans., 2012,41, 11700-11705

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Two wheel-like polytungstates obtained by incorporation of two {Cu4} clusters and two molybdenum centers in the {W48} wheel

Z. Liu, Z. Zhang, H. Fu, Y. Li, W. Chen, H. Wu and E. Wang, Dalton Trans., 2012, 41, 11700 DOI: 10.1039/C2DT30742A

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