作者:V. N. Krasil’nikov、A. P. Tyutyunnik、V. G. Zubkov、I. F. Berger、L. A. Perelyaeva、I. V. Baklanova
DOI:10.1134/s0036023610090019
日期:2010.9
Vanadium(V) complexes of general composition M3VO2(SO4)(2) (M = Rb, Cs) were synthesized by a solid-state route. The individuality of the synthesized compounds was proved by X-ray and neutron diffraction, vibrational spectroscopy, and microscopic analysis. The X-ray diffraction patterns of M3VO2(SO4)(2) were indexed to fit the monoclinic system (space group P2/c, Z = 4) with the following unit cell parameters: a = 11.6487(2) angstrom, b = 8.4469(2) angstrom, c = 12.1110(2) angstrom, beta = 109.483(1)degrees, V = 1123.43 angstrom(3) (Rb); a = 12.0546(3) angstrom, b = 8.7706(2) angstrom, c = 12.6496(3) angstrom, beta = 109.843(2)degrees, V = 1257.99 angstrom(3) (Cs). In the crystal structure of M3VO2(SO4)(2), [VO2(SO4)(2)](3-) complex anions can be discerned in which the vanadium atom is surrounded by five oxygen atoms: two oxygen atoms form short terminal V-O bonds, and three oxygen atoms are from the two sulfato groups, one of which acts as a monodentate ligand and the other acts as a bidentate chelating ligand.