Crystal Structure and Magnetic Properties of the Oxamidato-bridged Cu3 Complex Containing Macrocyclic Ligands

摘要

One novel oxamido-bridged trinuclear complex [Cu(CuL)2(ClO4)2] has been syn-thesized and structurally determined.It crystallizes in the monoclinic system,space group P21/n with a = 10.636(4),b = 11.645(4),c = 16.038(6) ,β = 91.029(5)°,V = 1986.2(12) 3,C38H32Cl2Cu3N8O12,Mr = 1054.24,Dc = 1.763 Mg/m3,μ(MoKα) = 1.802 mm-1,F(000) = 1066,Z = 2,the final R = 0.0328 and wR = 0.0882 for 3152 observed reflections.The crystal structure is a trinuclear complex in which the CuII ions are bridged by macrocyclic oxamide groups.C-H···O hydrogen bonding interactions link the trinuclear fragment to form a 2D supramolecular architecture.Magnetic measurements indicate that the compound is moderately antiferromagnetically coupled.