Synthetic,structural and spectroscopic studies of copper(II) complexes derived from the combination of the succinamate(−1) ligand with aromatic N,N′-chelates |
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| Authors: | Katerina N Lazarou Iordanis Chadjistamatis Aris Terzis Spyros P Perlepes Catherine P Raptopoulou |
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| Institution: | 1. Institute of Materials Science, NCSR “Demokritos”, 153 10 Aghia Paraskevi Attikis, Greece;2. Department of Chemistry, University of Patras, 265 04 Patras, Greece |
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| Abstract: | The use of succinamic acid (H2sucm)/N,N′-chelate (2,2′-bipyridine, bpy; 4,4′-dimethyl-2,2′-bipyridine, dmbpy; 1,10-phenanthroline, phen) ‘ligand blends’ in CuX2·yH2O (X = NO3, y = 3; X = Cl, y = 0) chemistry has yielded the new complexes Cu2(Hsucm)3(bpy)2](NO3)·0.5MeOH (1·0.5MeOH), Cu2(Hsucm)(OH)Cl(bpy)2](OH)·3.6H2O (5·3.6H2O) and Cu2(Hsucm)2Cl2(phen)2] (6). The succinamate(−1) ion behaves as a carboxylate ligand and exists in two different coordination modes in the structures of the above complexes, i.e., the common syn, syn μ2-κO:κO′ in 1, 5 and 6, and the μ2-κ2O:κO′ in 1. The primary amide group of Hsucm− remains uncoordinated and participates in intermolecular hydrogen bonding interactions leading to 1D, 2D and 3D networks. Characteristic IR bands of the complexes are discussed in terms of the known structures and the coordination modes of the Hsucm− ligands. |
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| Keywords: | Copper(II) complexes Crystal structures IR spectra N N&prime -chelates Succinamate(&minus 1) complexes |
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