Synthesis, Crystal Structure and Properties of Complex VO(C_(12)H_(12)N_2O_2) (C_(13)H_(10)NO_2)

摘要

Complex VO(C_(12)H_(12)N_2O_2)(C_(13)H_(10)NO_2)(C_(12)H_(12)N_2O_2~(2-) = acetylacetone benzoylhydrozanate, C_(13)H_(10)NO_2~- = N-phenylbenzohydroxamate) was synthesized and characterized by means of elemental analysis, IR and UV spectroscopies, cyclic voltammetry and single crystal X-ray diffraction. The complex crystallized in the mon-oclinic system with space group P2_1 and the crystal cell parameters a = l. 3003(1) nm, b = 0. 88836(6) nm, c = 2. 0196(2) nm, β = 95. 065(8)°, V = 2. 3238(3) nm~3, M_r = 495. 40 and Z = 4. The two oxygen and one nitrogen atoms of the tridentate hydrazone ligand coordinate to the vanadium atom, forming an equatorial plane. And the coordinated vanadium atom exhibits a distorted octahedral geometry. The atom in the transposition to the oxo O atom is the carbonyl oxygen atom of the hydroxamate ligand in the complex. The half-wave redox potential of the title complex in the three different solvents positively shifts in the order of CH_2Cl_2