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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 9
BKCSDE 32(9)
September 20, 2011 

 
Title
Crystal Structures and Thermal Properties of Two Binuclear Cd(II) Supramolecular Complexes Based on Quinolinecarboxylate Ligand
Author
Hu-Jun Hao, Xian-Hong Yin,*, Cui-Wu Lin, Shui-Qiang Wei
Keywords
Crystal structure, Cadmium (II), π-π stacking, Hydrogen bonding
Abstract
Two novel binuclear metal-organic coordination complexes [Cd2(L)2(bpy)2(H2O)2]·6H2O (1), [Cd2(L)2(phen)2- (H2O)2]·2H2O (2) (where L = 2-methylquinoline-3,4-dicarboxylate dianion, bpy = 2,2'-bipyridine, phen = 1,10- phenanthroline) have been synthesized under hydrothermal conditions and characterized by single crystal Xray diffraction, spectral method (IR), elemental analysis and thermal gravimetric analysis (TGA). Both 1 and 2 consist of two Cd(II) atoms bridged by two monoatomic bridging carboxylate groups from two L ligands, and the second carboxylate group of each L is monodentately coordinated to Cd(II), creating a sevenmembered chelating ring. The coordination at each metal nucleus is completed by a water molecule and a chelating bidentate molecule. The 3D structures of the complexes are stabilized by π-π stacking interactions and hydrogen-bonds.
Page
3255 - 3260
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