Article ID Journal Published Year Pages File Type
1262613 Journal of Rare Earths 2008 5 Pages PDF
Abstract

A novel double 1:11 series arsenotungstate, [CuI(phen)2]5H6[Sm(AsW11O39)2]·6H2O (phen=1,10-phenanthroline) was synthesized by the hydrothermal method and characterized by elemental analysis, IR spectra, and single-crystal X-ray diffraction. The title compound was monoclinic, space group P21/c, a=3.75710(2) nm, b=1.39776(8) nm, c=3.33735(18) nm, β =96.967(10)°, V=17.3969(17) nm3, Z=4. Single crystal X-ray structural analyses revealed that the dimeric polyanion, [SmAs2W22O78]1–, consisted of one central Sm3+ ion and two tetradentate heteropoly ligands [AsW11O39]7–. The Sm3+ ion and two tetradentate defective [AsW11O39]7– anions were joined together by the sharing of four oxygen atoms from each heteropoly ligand. The bond valence sum (BVS) calculations of the title compound suggested that all four Cu atoms were in the +1 oxidation sate.

Related Topics
Physical Sciences and Engineering Chemistry Chemistry (General)
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