Synthesis and Crystal Structure of Dicyanamide(5,7,7,12,14,14-Hexamethyl-1,4,8,11-tetraazacyclotetradecane) Copper(II) Percholatehydrate

摘要

The copper(II) complex [Cu(teta)N(CN)2](ClO4)·H2O (teta = 5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane) has been synthesized and the crystal structure was determined by single-crystal X-ray diffraction.Crystal data: C18H38ClCuN7O5,monoclinic,space group P21,a = 8.796(3),b = 11.885(4),c = 23.054(9)(A),β = 97.540(4)o,V = 2389.3(15)(A)3,Mr = 531.54,Z = 4,Dc = 1.478 g/cm3,F(000) = 1124,μ = 1.070 mm-1,the final R = 0.0566 and Wr = 0.1162 for 4749 observed reflections (I > 2б(I)).The center copper ion is coordinated by five nitrogen atoms in a square pyramidal geometry,with four from the macrocyclic ligand teta and the other one from a nitrile nitrogen atom of dicyanamide which is coordinated to the metal atoms as uni-dentate manner via nitrile nitrogen atom.