Zinc(II) pyridine-3,4-dicarboxylate polymeric complex with phen, [Zn(PDC)(phen)]_n (H₂PDC＝pyridine-3,4-dicarboxylic acid, phen＝1,10-phenthroline) has been synthesized and characterized by means of elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P2(1)/n with a＝0.77136 nm, b＝1.9757(4) nm, c＝1.0680(2) nm, β＝95.36(3)°, V＝1.6205(6) nm³, Z＝4, D_c＝1.683 Mg/m³, M_r＝410.68, F(000)＝832, μ＝1.55 mm^－1 and R₁＝0.0608, wR₂＝0.0967. The X-ray analysis revealed that the central Zn atom is octahedrally coordinated by three O atoms from two PDC ligands, one N atom from another PDC and two N atoms from phen. The resulting ZnN₃O₃ octahedron is bridged by PDC, forming a 2D layer net structure. In addition, the thermal and luminescent properties of the title compound were also studied.

Key words: coordination polymer, hydrothermal synthesis, crystal structure, luminescent property