1. A transition-metal-templated 3-D supramolecular framework based on molybdenum-vanadium polyoxoanions.
- Author
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Lu, Yu-Kun, Cui, Xiao-Bing, Xu, Jia-Ning, Gao, Qian, Chen, Yan, Jin, Juan, Shi, Shu-Yun, Xu, Ji-Qing, and Wang, Tie-Gang
- Subjects
POLYOXOMETALATES ,COORDINATION compounds ,SUPRAMOLECULAR chemistry ,MAGNETIC properties ,PHOTOELECTRON spectroscopy ,THERMOGRAVIMETRY - Abstract
A polyoxometalate [Co(phen)3][Co(en)3][Co(en)2(H2O)2][Co(en)2]0.5[ [image omitted]O40(VIVO)2] · 6H2O (1) (en = ethylenediamine, phen = 1,10-phenanthroline) has been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction, IR, electron paramagnetic resonance, X-ray photoelectron spectroscopy, elemental analyses, and thermogravimetry. The structure is an interesting 3-D supramolecular network containing bi-capped Keggin-type molybdenum-vanadium clusters with transition metal complexes generated in situ under mild hydrothermal conditions. Compound 1 contains four different counteractions being coordinated complexes of cobalt. The magnetic properties of 1 have also been studied in the temperature range of 4-300 K, and its magnetic susceptibility obeys the Curie-Weiss law, showing ferromagnetic coupling. [ABSTRACT FROM AUTHOR]
- Published
- 2010
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