The synthesis and structure of the NiII complex of 1,10-phenanthroline-2,9-dicarboxylate: a three-dimensional network via hydrogen bonding interactions
摘要:
A new Ni-II complex, [Ni(L)(H2O)(3)]center dot H2O(L = 1,10-phenanthroline-2,9-dicarboxylate), has been synthesized and structurally determined by X-ray diffraction analysis. The complex crystallizes in monoclinic system, space group P2(1)/c, a = 9.667(4), b = 21.929(9), c = 7.262(3) angstrom, beta = 95.395(7)degrees and Z = 4. In this complex, each metal center adopts an octahedral geometry formed by two N atoms of a ligand L and four 0 atoms from three H2O molecules and a carboxyl of the ligand. Each ligand adopts N,N,O-tridentate coordination mode with two N atoms and an 0 atom chelating a Ni-II center to form a mononuclear molecule. Intermolecular strong O-H center dot center dot center dot O and weak C-H center dot center dot center dot O hydrogen bonds extend the mononuclear structure into a three-dimensional supramolecular architecture. (c) 2005 Elsevier B.V. All rights reserved.