The tetragonal-pyramidal VO2+ complexes [VO(RSC-S)=N-N=X}(2)] (1-6) were synthesised by the reactions of VO(OCHMe2)(3) with the dithiocarbazate ligands RSC(=S)-NH-N=X, where X = cyclo-pentyl, cyclohexyl or 4-Me2N-C6H4-CH, and R = CH3 or CH2C6H5. The compounds were characterised by elemental analysis, IR- and mass spectrometries, and in cases of compounds 1, 3, 4 and 5, by X-ray diffraction. The chiral compound 4 (X = cyclo-hexyl, R = CH2C6H5) crystallises in the C configuration. In compound 5, the V=O moiety is disordered (83.3:16.7%) with respect to the plane spanned by the four equatorial ligand functions. (C) 2008 Elsevier B.V. All rights reserved.
作者:Y. P. Tian、C. Y. Duan、Z. L. Lu、X. Z. You、H. K. Fun、K. Sivakumar
DOI:10.1107/s010827019600385x
日期:1996.9.15
There are two independent centrosymmetric and essentially planar molecules in the unit cell of the title compound, [Ni(C11H14N3S2)(2)], having slightly different ligand conformations and a square-planar coordination of the Ni atom. Within each molecule, the two ligands are linked by a pair of C-H ... S hydrogen-bonding interactions.