Abstract
The new copper (II) complexes with substituted salicylaldehyde ligands (X-saloH, where X = 3-methoxy and 5-methyl) formulated as [Cu(3-OCH3-salo)2(H2O)] (1) and [Cu(5-CH3-salo)2] (2), respectively, were synthesized and characterized by physicochemical methods and by spectroscopy (IR and UV–Vis). The different geometry around Cu2+ ion for the two complexes was proved by single-crystal X-ray diffraction analysis. Simultaneous TG/DTG–DTA techniques were used to analyze their thermal behavior under inert atmosphere, with particular attention to determine their thermal degradation pathways, which was found to be a multi-step decomposition accompanied by the release of the ligand molecules. The activation energy of the decomposition processes was calculated using the isoconversional Ozawa–Flynn–Wall (OFW) method and the reaction model was determined with the model fitting method.
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Detailed crystal data and structure refinement for complexes [Cu(3-OCH3-salo)2(H2O)]. 0.25 H2O (1) and [Cu(5-CH3-salo)2] (2) have been deposited with the Cambridge Crystallographic Data Centre under No CCDC 1014202 (1) and No CCDC 014203 (2). (PDF 133 kb)
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Copies of this information may be obtained free of charge from the Director, CCDC, 12 Union Road, Cambridge, CB2 IEZ, UK (fax: +44-1223-336033; e-mail: deposit@ccdc.cam.ac.uk or http://www.ccdc.cam.ac.uk). (PDF 99 kb)
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Zianna, A., Chrissafis, K., Hatzidimitriou, A. et al. Thermal analysis and structural characterization of copper(II) complexes with salicyladehydes. J Therm Anal Calorim 120, 59–66 (2015). https://doi.org/10.1007/s10973-014-4188-2
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DOI: https://doi.org/10.1007/s10973-014-4188-2