Two supramolecular structures constructed from Keggin-type polyoxometalates and 4,4′-bipyridine
Autor: | Ya-Bing Liu, Li-Na Xiao, Ji-Qing Xu, La-Mei Wang, Yang-Yang Hu, Yan Wang, Xiao-Bing Cui |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Journal of Coordination Chemistry. 65:4342-4352 |
ISSN: | 1029-0389 0095-8972 |
Popis: | Two supramolecular compounds based on Keggin-type polyoxometalates (POMs), (4,4′-H2bpy)(4,4′-Hbpy)[PMo12O40] (1) and (4,4′-H2bpy)(4,4′-Hbpy)2[SiW12O40] · 4H2O (2), have been synthesized hydrothermally and characterized by elemental analyses, IR, UV-Vis, XPS spectra, thermogravimetric analyses, and single-crystal X-ray diffraction analyses. The two compounds consist of 4,4′-bipyridine (4,4′-bpy) ligands and different Keggin-type POMs which are [PMo12O40]3− for 1 and [SiW12O40]4− for 2. There are hydrogen-bonding interactions between the POMs, 4,4′-bipyridine, and/or water in 1 and 2. In addition, 2 contains an uncommon (H2O)2 water cluster. |
Databáze: | OpenAIRE |
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