X-Ray Structure Characterization of Palladium(II) Ternary Complexes of Pyridinedicarboxylic and Phthalic Acid with Phenanthroline and Bipyridine

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  • Wang Yue
    Lab of Inorganic Chemistry, China Pharmaceutical University
  • Okabe Nobuo
    Faculty of Pharmaceutical Sciences, Kinki University

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  • X Ray Structure Characterization of Palladium 2 Ternary Complexes of Pyridinedicarboxylic and Phthalic Acid with Phenanthroline and Bipyridine

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Abstract

The crystal structures of the series of four ternary complexes, [Pd(phen)(2,6-PDCA)]·4H2O (1) (phen=1,10-phenanthroline; 2,6-PDCA=2,6-pyridinedicarboxylic acid), [Pd(bpy)(2,3-PDCA)]·3H2O (2) (bpy=2,2′-bipyridineand; 2,3-PDCA=2,3-pyridinedicarboxylic acid) and [Pd(phen)(PHT)]·2.5H2O (3) (PHT=o-phthalic acid ) and [Pd(bpy)(PHT)]·1.5H2O (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.

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