A novel water-rich mononuclear copper(II) complex with pyridine-2,4-dicarboxylate: Synthesis and crystal structure

Author: Tu B.   Zhu H.   He G.   Chen Y.   Hu B.   Chen J.  

Publisher: MAIK Nauka/Interperiodica

ISSN: 1070-3284

Source: Russian Journal of Coordination Chemistry, Vol.37, Iss.9, 2011-09, pp. : 696-700

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Abstract

A new monomolecular copper(II) complex, [Cu(Phen)2(Pda)] · 9H2O (I) (H2Pda = pyridine-2,4-dicarboxylate acid, Phen = 1,10-phenanthroline), has been prepared from H2Pda and Phen at room temperature and characterized by IR, elemental analysis, X-ray powder diffraction, and single-crystal X-ray diffraction. Structure analysis shows that each Cu(II) is coordinated by two Phen ligands and one Pda ligand to complete a octahedron CuN5O chromophore. In addition, a unique water networks paralleling to (001) composed by the crystallization water through hydrogen bonds play a important role in the stability of crystal structure. The crystal structure is found to be orthorombic with space group Pbcn and cell parameters a = 13.651(4), b = 22.516(7), c = 22.386(7) Å, R 1 = 0.0735 and wR 2 = 0. 0.1935.

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