Formation of an unusual copper(II) complex from the degradation of a novel tricopper(II) carbohydrazone complex |
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| Authors: | E Manoj MR Prathapachandra Kurup Rohith P John M Nethaji Alex Punnoose |
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| Affiliation: | aDepartment of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala 682 022, India;bDepartment of Applied Chemistry, ISM University, Dhanbad, Jharkhand 826 004, India;cDepartment of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India;dDepartment of Physics, Boise State University, Boise, ID 83725-1570, USA |
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| Abstract: | An unusual copper(II) complex Cu(L1a)2Cl2] CH3OH·H2O·H3O+Cl− (1a) was isolated from a solution of a novel tricopper(II) complex Cu3(HL1)Cl2]Cl3·2H2O (1) in methanol, where L1a is 3-(2-pyridyl)triazolo1,5-a]-pyridine, and characterized with single crystal X-ray diffraction study. The tricopper(II) complex of potential ligand 1,5-bis(di-2-pyridyl ketone) carbohydrazone (H2L1) was synthesized and physico-chemically characterized, while the formation of the complex 1a was followed by time-dependant monitoring of the UV–visible spectra, which reveals degradation of ligand backbone as intensity loss of bands corresponding to O → Cu(II) charge transfer. |
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| Keywords: | Carbohydrazone Cu(II) complex Synthesis Dipyridyl ketone Antiferromagnetism EPR Crystal structure |
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