One dimensional chain cadmium (II) coordination polymer has been synthesized with 2,4,6-trimethylbenzoic acid, 1,10-phenanthroline and cadmium perchlorate anhydrous in the solvent mixture of water and methanol. Crystal data for this complex: Tetragonal, space group I41, a=2.0425(7) nm, c = 1.3952(5) nm, V= 5.820(3) nm3, Dc=1.454 g·cm -3, Z=8, F(000)=2608, GooF=1.064, R1=0.034 8, wR 2=0.0704. The crystal structure shows that the Cobaly ion is coordinated with two nitrogen atoms of one 1,10-phenanthroline molecules and four oxygen atoms from two...