Abstract
Two complexes, [Co(H2pimdc)2(H2O)2] · 2DMF (1) and [Co(H2pimca)2(H2O)2] · 4H2O (2), have been designed, synthesized, and characterized (X-ray single crystal analysis, thermal analysis, electrochemical analysis, and infrared spectrum) based on the imidazole ligand [H3pimdc = 2-propyl-4,5-imidazoledicarboxylic acid]. Both compounds have 3-D hydrogen-bonding networks. Because of different coordination of water, 1 forms a layer-like geometry via hydrogen bonds, but 2 forms a fishingnet-like latticed geometry via hydrogen bonds.
Acknowledgments
The authors thank the National Natural Science Foundation of China (20761002), P.R. China, the Natural Science Foundation of Guangxi (0832080), P.R. China and the Innovation Project of Guangxi University for Nationalities (gxun-chx2010083).