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Synthesis and crystal structure of a new composite complex between a hepta-coordinate ytterbium(III) and a heteropoly molybdic anion: [Yb(DMSO)7]H[SiMo12O40] (DMSO = dimethyl sulfoxide)

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Abstract

A new composite complex of the general formula [Yb(DMSO)7]H[SiMo12O40] has been synthesized from H4SiMo12O40nH2O, YbCl3 and DMSO in mixed solvent of acetonitrile and water and characterized by elemental analysis, IR spectra and single crystal X-ray diffraction. Singe crystal X-ray structure analysis shows that it belongs to monoclinic system, space group P21/c, with a = 11.685(2) Å, b = 14.969(3) Å, c = 35.037(7) Å, β = 98.50(3), and Z = 4. There is one [Yb(DMSO)7]3+ coordinated cation and one [SiMo12O40]4− polyanion in one structure unit. The organic ligands (DMSO) do coordinate directly with ytterbium(III) to form a distorted pentagonal bipyramid complex ion by coordination bond, then combines to the SiMo12O404− anion by static electric force. The results of IR and X-ray diffraction show that there is strong interaction between polyoxometalate and organic donors.

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Correspondence to Jing-Yang Niu.

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Wang, JP., Han, QX. & Niu, JY. Synthesis and crystal structure of a new composite complex between a hepta-coordinate ytterbium(III) and a heteropoly molybdic anion: [Yb(DMSO)7]H[SiMo12O40] (DMSO = dimethyl sulfoxide). J Chem Crystallogr 35, 629–634 (2005). https://doi.org/10.1007/s10870-005-6160-2

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  • DOI: https://doi.org/10.1007/s10870-005-6160-2

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