Hydrothermal Synthesis, Crystal Structure and Magnetic Property of a Novel Pentanuclear Copper(II) C

• 作 者: 刘庆燕 王玉玲 徐立
• 机 构: College of Chemistry and Chemical Engineering, Jiangxi Normal University,Fujian Institute of Researc
• 出 处: 结构化学
• 发表日期: 2009年06期
• 关键词: triclinic ferromagnetic hydrothermal Complex Cu_5 HSIP H_2O II supramolecular sy

The pentanuclear complex, Cu5(SIP)2(HSIP)2(H2O)18(H2O)5(H3SIP = 5-sulfoi-sophthalic acid), has been synthesized by the hydrothermal reaction of CuCl2 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 P1-, with a = 7.0018(5), b = 11.9725(8), c = 19.0424(13) , α = 78.8540(10), β = 85.1710(10), γ = 83.6080(10)o, V = 1553.24(19) 3, Z = 1, C32H60O51S4Cu5, Mr = 1706.74, Dc = 1.825 g/cm3, 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 Cu2+ ions are connected by two symmetry-related tridentate SIP3-ligands and charge-balanced by two monodentate HSIP2-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 Cu2+ ions.

The pentanuclear complex, Cu5 (SIP) 2 (HSIP) 2 (H2O) 18 (H2O) 5, has been synthesized by the hydrothermal reaction of CuCl2 with NaH2SIP at 160 ° C and characterized by single-crystal X-ray diffraction and IR spectrum. The crystal of the complex crystallizes in a triclinic system, space group P1- with a = 7.0018 (5), b = 11.9725 (8), c = 19.0424 α = 78.8540 (10), β = 85.1710 (10), γ = 83.6080 (10) o, V = 1553.24 (19) 3, Z = 1, C32H60O51S4Cu5, Mr = 1706.74, Dc = 1.825 g / cm3, 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 Cu2 + ions are connected by two symmetry-related tridentate SIP3-ligands and charge -balanced by two monodentate HSIP2-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 ferromagnet ic magnetic interactions between the Cu2 + ions.