摘要
The pentanuclear complex, [Cu5（SIP）2（HSIP）2（H2O）18]（H2O）5 （H3SIP = 5-sulfoisophthalic acid）, has been synthesized by the hydrothermal reaction of CuCI2 with NaH2SIP at 160 ℃, and characterized by single-crystal X-ray diffraction and IR spectrum. The crystal of the complex crystallizes in a triclinic system, space group P^-1, with a = 7.0018（5）, b = 11.9725（8）, c = 19.0424（13）A^°, α = 78.8540（10）, β = 85.1710（10）, γ = 83.6080（10）°, V = 1553.24（19）A^°^3 Z = 1, C32H60O51S4Cu5, Mr= 1706.74, Dc= 1.825 g/cm^3,μ = 1.937 mm^-1, F（000） = 869, the final R = 0.0709 and wR = 0.1503 for 4235 observed reflections with I 〉 2σ（I）. The five Cu^2＋ ions are connected by two symmetry-related tddentate SIP^3- ligands and charge-balanced by two monodentate HSIP^2- ligands, giving a discrete pentanuclear structure. The pentanuclear copper molecules are linked by hydrogen bonds to form a three-dimensional supramolecular structure. The temperature-dependent magnetic susceptibility data revealed weak ferromagnetic magnetic interactions between the Cu^2＋ ions.
The pentanuclear complex, [Cu5（SIP）2（HSIP）2（H2O）18]（H2O）5 （H3SIP = 5-sulfoisophthalic acid）, has been synthesized by the hydrothermal reaction of CuCI2 with NaH2SIP at 160 ℃, and characterized by single-crystal X-ray diffraction and IR spectrum. The crystal of the complex crystallizes in a triclinic system, space group P^-1, with a = 7.0018（5）, b = 11.9725（8）, c = 19.0424（13）A^°, α = 78.8540（10）, β = 85.1710（10）, γ = 83.6080（10）°, V = 1553.24（19）A^°^3 Z = 1, C32H60O51S4Cu5, Mr= 1706.74, Dc= 1.825 g/cm^3,μ = 1.937 mm^-1, F（000） = 869, the final R = 0.0709 and wR = 0.1503 for 4235 observed reflections with I 〉 2σ（I）. The five Cu^2＋ ions are connected by two symmetry-related tddentate SIP^3- ligands and charge-balanced by two monodentate HSIP^2- ligands, giving a discrete pentanuclear structure. The pentanuclear copper molecules are linked by hydrogen bonds to form a three-dimensional supramolecular structure. The temperature-dependent magnetic susceptibility data revealed weak ferromagnetic magnetic interactions between the Cu^2＋ ions.
基金
Supported by the Education Department of Jiangxi Province (No. 2007-125)
Jiangxi Normal University
