Synthesis, Crystal Structure and Thermal Stability of a One-dimensional Chain Cobalt Coordination Polymer Co( 4,4 '-bipy)( 2,4,6- TMBA)2( CH3CH2OH)2n

摘要

A one-dimensional chain cobalt(II) coordination polymer with 2,4,6-trimethyl- benzoic acid, 4,4-bipyridine and cobalt perchlorate anhydrous has been synthesized and charac- terized in the mixture solvent of water and alcohol. Crystal data for this complex: monoclinic, space group C2/c, a = 2.3805(8), b = 1.1464(4), c = 1.5807(5) nm, γ = 128.435(4)o, V = 3.3791(18) nm3, Dc = 1.246 g/cm3, Z = 4, F(000) = 1340, final GooF = 1.009, R = 0.0504 and wR = 0.1287. Structural analysis shows that the cobalt ion is coordinated with two nitrogen atoms of one 4,4- bipyridine molecule and four oxygen atoms from two 2,4,6-trimethylbenzoic acid molecules and two alcohol molecules, giving a distorted octahedral coordination geometry. The result of TG analysis indicates that the title complex is stable till 200 ℃.