A unique borotungstate containing a discrete Keggin-type anion and a trimeric saturated Keggin-type anion |
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| Authors: | Q Wu P T Ma Y P Song J P Wang J Y Niu |
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| Institution: | (1) State Key Laboratory of Optoelectronic Materials and Technologies, Institute of Optoelectronic and Composite Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, China;(2) Department of Chemistry, Jiaying University, 514015 Meizhou, China; |
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| Abstract: | A unique hybrid borotungstate, Cu(En)(Phen)(H2O)]4α-BW12O40]{Cu(En)(Phen)]2Cu(En)2 · (H2O)]2Cu(En)(Phen)(H2O)]2α-BW12O40]3]} sd 10H2O (I) (Phen = 1,10-phenanthroline, En = ethylenediamine), has been hydrothermally synthesized and characterized by elemental analyses,
IR, and UV spectra, powder X-ray diffraction, thermogravimetric analysis, X-ray photoelectron spectroscopy, and singlecrystal
X-ray diffraction analysis. X-ray crystallography shows that I contains a discrete saturated Keggin-type BW12O40]5− polyoxoanion and a rare trimeric saturated Keggin-type polyoxoanion {Cu(En)(Phen)]2Cu(En)2(H2O)]2Cu(En)(Phen)(H2O)]2α-BW12O40]3]}3−. It is noteworthy that I represents the first example of borotungstate containing four saturated Keggin-type units in one molecule. |
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