new 1D metal–organic coordination polymer with blue fluorescent emission: [Cd2(1,100-phen)2(betc)(H2O)]n

A new coordination polymer [Cd2(1,100-phen)2(betc)(H2O)]n (1) (betc ¼ benzene-1,2,4,5-tetracarboxylate, 1,100-phen ¼ 1,100-phenanthroline) was hydrothermally synthesized from CdCl2·2.5H2O, H4betc and 1,100-phen at 160 8C. It was characterized by IR, XPS, TG and single-crystal X-ray diffraction. Compound 1 possesses infinite chair-like chains which construct 3D framework through p–p interactions and the hydrogen bond interactions. The fluorescent spectrum study shows that compound 1 exhibits blue fluorescent emission in the solid at room temperature. q 2004 Elsevier B.V. All rights reserved.