Two Cu(Ⅱ) complexes with title Schiff base ligand H 2L, micro crystal Cu(HL)ClO 4·H 2O and single crystal , have been synthesized and characterized by IR spectra, etc .. By cyclic voltammetry, a quasi reversible...Two Cu(Ⅱ) complexes with title Schiff base ligand H 2L, micro crystal Cu(HL)ClO 4·H 2O and single crystal , have been synthesized and characterized by IR spectra, etc .. By cyclic voltammetry, a quasi reversible electron transferring process has been shown in Cu(Ⅱ)/Cu(Ⅰ) couples reaction of ; the given value E 0 1/2 =-0.73 V has been estimated. The structure of has been determined by X ray diffraction with R =0.036. The results indicate that the deprotonic ligand, as a practically tetradentate, coordinates only with its two imino and two phenoxo groups to form a D 2d symmetric geometry. Two different torsional modes of the homologous ligands, occurring in mono and di nuclear Cu(Ⅱ) complexes, respectively, have been contrasted and discussed.展开更多
文摘Two Cu(Ⅱ) complexes with title Schiff base ligand H 2L, micro crystal Cu(HL)ClO 4·H 2O and single crystal , have been synthesized and characterized by IR spectra, etc .. By cyclic voltammetry, a quasi reversible electron transferring process has been shown in Cu(Ⅱ)/Cu(Ⅰ) couples reaction of ; the given value E 0 1/2 =-0.73 V has been estimated. The structure of has been determined by X ray diffraction with R =0.036. The results indicate that the deprotonic ligand, as a practically tetradentate, coordinates only with its two imino and two phenoxo groups to form a D 2d symmetric geometry. Two different torsional modes of the homologous ligands, occurring in mono and di nuclear Cu(Ⅱ) complexes, respectively, have been contrasted and discussed.
