摘要:
A new complex of oxovanadium(IV), V2O2[(HB(pz)(3))(2)(pyrro)(2) (1) and a dimer-dithio carboxyl compound (C5H8NS2)(2) (2) have been synthesized by the reaction of VOSO4 center dot nH(2)O with NaHB(pz)(3) and pyrrolidine dithio carboxylic acid ammonium salt. They were characterized by element analysis, IR spectra, UV-vis spectra and X-ray diffraction. Structural analyses of 1 and 2 gave the following parameters: 1, triclinic, P-1, a = 7.732(4)angstrom, b = 14.285(8)angstrom, c = 17.802(9)angstrom, alpha = 101.314(8)degrees, beta = 92.682(9)degrees, gamma = 92.228(9)degrees, V = 1923.6(18)angstrom(3), and Z = 4; 2. monoclinic, C2/c, a = 13.857(2)angstrom, b = 10.4213(18)angstrom, c = 9.436(2)angstrom, beta = 97.099(2), V= 1352.1(4)angstrom(3). and Z = 4. In complex 1, vanadium atom adopts a distorted tetragonal bipyramid structure, which is typical for oxovanadium(IV) complexes. Compound 2 is a dimerdithio carboxyl compound with S-S bond. In addition, thermal analysis was performed for analyzing the stabilization of the complexes. (C) 2010 Elsevier B.V. All rights reserved.