【摘 要】
：
A new metal-organic complex [Pb2(PDB)2(phen)]n·nH2O (H2PDB = pyridine-3,4-dicarboxylic acid, phen = 1,10-phenanthroline) 1 has been hydrothermally synthesized
【机 构】
：
Department of Chemistry,Jilin Normal University
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A new metal-organic complex [Pb2(PDB)2(phen)]n·nH2O (H2PDB = pyridine-3,4-dicarboxylic acid, phen = 1,10-phenanthroline) 1 has been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectrum, TG and single-crystal X-ray diffraction. The compound crystallizes in triclinic, space group P~(-)1 with a = 7.2472(5), b = 10.6966(8),c = 16.2376(12) (A), α = 98.2960(10), β= 91.6430(10), γ = 97.4810(10)°, V = 1233.53(16) (A)3,C26H16O9N4Pb2, Mr = 942.81, Dc = 2.538 g/cm3, μ(MoKα) = 13.697 mm-1, F(000) = 872, Z = 2, the final R = 0.0247 and wR = 0.0654 for 3886 observed reflections (Ⅰ＞2σ(Ⅰ)). In the crystal structure,the Pb(1) atom is six-coordinated with four carboxylate oxygen atoms from three different PDB ligands and two nitrogen atoms from phen ligand, showing a distorted octahedral geometry.; the Pb(2) atom is four-coordinated with four carboxylate oxygen atoms from four different PDB ligands,showing a distorted tetrahedral geometry. It exhibits a three-dimensional supramolecular network structure formed by hydrogen bonds and π-π interactions.
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