A new dinuclear copper(Ⅱ)compound[Cu2(CH3COO)2(L)2(H2O)2]·4H2O(1,HL=4-pyridyl-NH-1,2,3-triazole)has been synthesized and characterized.Single-crystal X-ray diffraction showed that complex 1 crystallizes in monoc...A new dinuclear copper(Ⅱ)compound[Cu2(CH3COO)2(L)2(H2O)2]·4H2O(1,HL=4-pyridyl-NH-1,2,3-triazole)has been synthesized and characterized.Single-crystal X-ray diffraction showed that complex 1 crystallizes in monoclinic space group P21/c with a=0.8427(1),b=1.0981(1),c=1.3610(1)nm,β=93.364(4)°,V=1.2573(1)nm^3,Mr=643.56,Z=2,Dc=1.700 g/cm^3,μ=1.760 mm-1,R=0.0376,wR=0.0981,and possesses a planar Cu2N4 six-membered ring,in which both Cu(Ⅱ)ions are bridged by two 1,2,3-triazole ligands.The neighboring dinuclear molecules are bound by strong intermolecular hydrogen bonds to create 1-D chains expanding along the b axis,which further form a 3-D supramolecular framework.Magnetic susceptibility measurement indicated the presence of weak antiferromagnetic interactions within the complex.The best fit using spin Hamiltonian yields the magnetic coupling constant J=–14.82 cm^-1 above 30 K.The magnetic data are compared to those obtained for related double diazine bridged dinuclear copper(Ⅱ)complexes and magnetostructural correlations are discussed.展开更多
基金the National Natural Science Foundation of China(21002076,21441007)the Open Fund Project(No.KLSAOFM1709)of Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Function Molecules,Hubei UniversityNo.CX2018150 and No.CX2018132 supported by the Graduate Innovative Fund of Wuhan Institute of Technology。
文摘A new dinuclear copper(Ⅱ)compound[Cu2(CH3COO)2(L)2(H2O)2]·4H2O(1,HL=4-pyridyl-NH-1,2,3-triazole)has been synthesized and characterized.Single-crystal X-ray diffraction showed that complex 1 crystallizes in monoclinic space group P21/c with a=0.8427(1),b=1.0981(1),c=1.3610(1)nm,β=93.364(4)°,V=1.2573(1)nm^3,Mr=643.56,Z=2,Dc=1.700 g/cm^3,μ=1.760 mm-1,R=0.0376,wR=0.0981,and possesses a planar Cu2N4 six-membered ring,in which both Cu(Ⅱ)ions are bridged by two 1,2,3-triazole ligands.The neighboring dinuclear molecules are bound by strong intermolecular hydrogen bonds to create 1-D chains expanding along the b axis,which further form a 3-D supramolecular framework.Magnetic susceptibility measurement indicated the presence of weak antiferromagnetic interactions within the complex.The best fit using spin Hamiltonian yields the magnetic coupling constant J=–14.82 cm^-1 above 30 K.The magnetic data are compared to those obtained for related double diazine bridged dinuclear copper(Ⅱ)complexes and magnetostructural correlations are discussed.
