Gou, Lei, Qin, Ting, Hu, Huai-Ming, Chen, Xiao-Li, Wang, Bao-Cheng, Wu, Qing-Ran, Zhang, Bo, and Tang, Zong-Xun
Two metal-organic coordination polymers, [Cd(HIDC)(pytpy)] (1) and [Zn(HIDC)(pytpy)] · (H2O) (2), have been synthesized by reactions of 4'-(3-pyridyl)-2,2' : 6',2''-terpyridine (pytpy), 4,5-imidazoledicarboxylic acid (H3IDC) with CdCl2 · 2.5H2O and ZnCl2, respectively, in the presence of base. Compound 1 is a one-dimensional (1-D) helical chain with the chains extended into a three-dimensional supramolecular network through two different π ··· π interactions from pytpy ligands. Compound 2 is also a 1-D helical chain and adjacent chains are packed into a 2-D layer through π ··· π interactions between terminal pyridyl and pendant pyridyl rings from pytpy ligands. The photoluminescent properties of the two compounds are also investigated. [ABSTRACT FROM AUTHOR]