Abstract
A new 1D organic-inorganic hybrid monocopper substituted Dawson-type arsenotungstate (H2En)0.5[Cu(En)2]0.5{[Cu(En)2(H2O)]2[Cu(En)2](α1-As2W17CuO61)} · 8H2O (I) has been hydrothermally synthesized by the reaction of Na8[A-α-HAsW9O34] · 11H2O, CuCl2 · 2H2O, YCl3, with enthylenediamine (En) and characterized by elemental analyses, IR spectra, UV spectra, powder X-ray diffraction, thermogravimetric analysis, as well as single-crystal X-ray diffraction. Single-crystal structural analysis shows that I displays an interesting 1D chain constructed from [α1-As2W17CuO61]8− subunits by means of common oxygen atoms and [Cu(En)2]2+ bridges. It should be noted that the structural transformation of the trivacant Keggin polyoxoanion [A-α-AsW9O34]9− to the monovacant Dawson [α-As2W17O61]10− polyoxoanion was observed. The TG curve of I exhibits three stages of weight loss.
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Pei, X.R., Li, Y.Y., Shi, D.Y. et al. Synthesis, structure, and characterization of a 1D monocopper substituted Dawson-type arsenotungstate (H2En)0.5[Cu(En)2]0.5{[Cu(En)2(H2O)]2[Cu(En)2] (α1-As2W17CuO61)} · 8H2O. Russ J Coord Chem 38, 99–105 (2012). https://doi.org/10.1134/S1070328412010083
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DOI: https://doi.org/10.1134/S1070328412010083