Influential factors on assembly of first-row transition metal coordination polymers
摘要:
Herein, twenty-seven coordination polymers were synthesised using Mn2+, Co2+, Ni2+, Cu2+ and Zn2+ in organic solvents. Structural analyses show that metal ions are the most important factor that influences coordination polymer assembly. Metal ions determine the type of metal centre and structural topology. The organic ligand benzene dicarboxylic acid is the second most influential factor. Synthetic conditions are not key factors in this research system. (C) 2013 Elsevier B. V. All rights reserved.
To investigate the role of solvents on the self-assembly of coordination frameworks, the reactions between MnCl2·4H2O and thiophenedicarboxylate (thb) ligand in different solvents at 120 °C produced four new Mn–thb complexes. These Mn–thb frameworks all use a rod-and-spacer assembly mode, but their rod-packing architectures are totally different because of the structure-directing effect of solvents