摘要
A novel tetranuclear nickel（II） complex [NiaL2（DMF）2（H20）2＇2DMF] （1, H4L = azo-enolic-2-hydroxybenzamide, DMF = N,N-dimethyl-formamide） has been synthesized and characterized by elemental analysis, UV, IR and X-ray single-crystal diffraction characterization. Complex 1 crystallizes in the monoclinic system, space group P21/n with a = 8.8944（11）, b = 14.4583（18）, c = 18.097（2） A, fl = 90.00（2）, Z = 2 , V = 2327.2（5） A3, C40H48NI2Ni4OI4, Mr = 1155.66, Dc= 1.649 g/cm3,μ=1.672 mm1, F（000） = 1192, R = 0.0392 and wR = 0.0958. The local coordination environment around the nickel ions exist a distorted octahedral and quadrangle geometry in the molecular structure. Complex 1 exhibits strong photoluminescent emission in the ultraviolet region at room temperature. The electrochemical studies reveal that redox of Nia＋/Ni2＋ in the complex is a quasi-reversible process.
A novel tetranuclear nickel（II） complex [NiaL2（DMF）2（H20）2＇2DMF] （1, H4L = azo-enolic-2-hydroxybenzamide, DMF = N,N-dimethyl-formamide） has been synthesized and characterized by elemental analysis, UV, IR and X-ray single-crystal diffraction characterization. Complex 1 crystallizes in the monoclinic system, space group P21/n with a = 8.8944（11）, b = 14.4583（18）, c = 18.097（2） A, fl = 90.00（2）, Z = 2 , V = 2327.2（5） A3, C40H48NI2Ni4OI4, Mr = 1155.66, Dc= 1.649 g/cm3,μ=1.672 mm1, F（000） = 1192, R = 0.0392 and wR = 0.0958. The local coordination environment around the nickel ions exist a distorted octahedral and quadrangle geometry in the molecular structure. Complex 1 exhibits strong photoluminescent emission in the ultraviolet region at room temperature. The electrochemical studies reveal that redox of Nia＋/Ni2＋ in the complex is a quasi-reversible process.
基金
Supported by the Key Laboratory of Environmental Engineering,Protection and Assessment of Guangxi
the National Water Pollution Control and Management of China(No.2008ZX07317-02)
the Startup Foundation for Dr.of Guilin University of Technology
