title: X-ray structure characterization of palladium(II) ternary complexes of pyridinedicarboxylic and phthalic acid with phenanthroline and bipyridine.
abstract: The crystal structures of the series of four ternary complexes, [Pd(phen)(2,6-PDCA)].4H(2)O (1) (phen=1,10-phenanthroline; 2,6-PDCA=2,6-pyridinedicarboxylic acid), [Pd(bpy)(2,3-PDCA)].3H(2)O (2) (bpy=2,2'-bipyridineand; 2,3-PDCA=2,3-pyridinedicarboxylic acid) and [Pd(phen)(PHT)].2.5H(2)O (3) (PHT=o-phthalic acid ) and [Pd(bpy)(PHT)].1.5H(2)O (4), are determined and the coordination modes of palladium(II) ternary complexes are characterized. All complexes take the mononuclear Pd(II) complexes, in which central Pd(II) atom of each complex has a similar distorted square-planar four coordination geometry. In all complexes, the aromatic heterocyclic compounds, phen and bpy, behave as a bidentate N, N' ligand. In the complex 1 and 2, 2,6-PDCA and 2,3-PDCA behave as a bidentate N, O ligand, and in complex 3 and 4, PHT behaves as a bidentate O, O' ligand.
authors.affiliation: Lab of Inorganic Chemistry, China Pharmaceutical University, Nanjing.
authors.forename: Yue
authors.initials: Y
authors.lastname: Wang
authors.forename: Nobuo
authors.initials: N
authors.lastname: Okabe
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D010165:Palladium / Q000737:chemistry*; D010618:Phenanthrolines / Q000737:chemistry*; D010795:Phthalic Acids / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*
chemical_list: D010618:Phenanthrolines; D010795:Phthalic Acids; D011725:Pyridines; C055293:2,4-pyridinedicarboxylic acid; D010165:Palladium; C032279:phthalic acid