2D Hydrogen-bonded polymer assembled by zinc(II) tetraaza macrocyclic complex and 1,2-cyclopentanedicarboxylic acid

摘要

The self-assembly of [Zn(L)(H_(2)O)_(2)]·Cl_(2)and 1,2-cyclopentanedicarboxylic acid generates a 2D hydrogen-bonded polymer [Zn(L)(Hcpdc)] (L=3,14-dimethyl-2,6,13,17-tetraazatricyclo[14,4,0~(1.18)0~(7.12)]docosane, H_(2)cpdc= 1,2-cyclopentanedicarboxylic acid) ( 1 ). Complex 1 is characterized by X-ray crystallography, spectroscopy, and thermogravimetric analyzer. The crystal structure of 1 shows a distorted octahedral coordination geometry around the zinc (II) ion, with the four secondary amines of the macrocycle and two carboxylate oxygen atoms of the Hcpdc~(-)ligand in the trans position. The compound crystallizes in the monoclinic system P 2_(1)/c with a =8.6002(10), b =10.4906(11), c =19.008(2) ?, β (°)=92.949(7)°, V =1712.6(3) ?~(3), Z =2. The IR spectrum and TGA behavior of the compound are significantly affected by the Hcpdc~(-)ligand.