Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 611, Issue 1-3, Pages 185-191Publisher
ELSEVIER
DOI: 10.1016/S0022-2860(02)00072-8
Keywords
highly reduced polyoxometalate; alternate arrangement; hydrothermal synthesis; crystal structure; thermal analysis
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An unusual polyoxometalate [H2N(C2H4)(2)NH2](4)(H3O)[(PMO2Mo6V4O40)-Mo-V-V-VI-O-IV((VO)-O-IV)(2)].H2O is hydrothermally synthesized and characterized by IR, UV-VIS, elemental analyses, X-ray photoelectron spectrum, ESR, TG and Single crystal X-ray diffraction. The title compound crystallizes in the orthorhombic space group Pbca with a = 15-227(5), b = 19.491(4), c = 18.737(3) Angstrom, V = 5123(2) Angstrom(3), Z = 4, and R-1 (wR(2)) = 0.0726(0.1416). The compound contains an unusual highly reduced pseudo-Keggin type polyoxoanion and exhibits an interesting phosphorus-centered alternate arrangement of layers of molybdenum and vanadium oxides. (C) 2002 Elsevier Science B.V. All rights reserved.
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