A two-dimensional metal organic network with 1,3,5-benzenetricarboxylate and cobalt (II) ions: synthesis, structure and topology

Abstract

We herein report the synthesis and structure of a two dimensional (2D) metal-organic coordination polymer (or metal-organic network) which extends in two dimensions via Co2+ and 1,3,5-benzenetricarboxylate ions. The hydrothermal reaction of (2R,2′R,2″R)-2,2′,2″-(benzenetricarbonyltris(azanediyl))tripropanoic acid (parent ligand) with cobalt nitrate in the presence of pyridine lead to the decomposition of the parent ligand producing 1,3,5-benzenetricarboxylate, which in turn reacted with cobalt ions to afford a 2D network [Co1.5(BTC3–)·(pyridine)3·(H2O)](H2O)0.26·(MeOH) (1). This network was characterized by single crystal X-ray diffraction and IR spectroscopy. The topological study indicated that the framework is a 3,4-connected binodal net.