Synthesis, crystal structures and spectroscopic investigation of new Cu/Schiff-base complexes
DOI:
https://doi.org/10.24297/jac.v10i8.2257Keywords:
bis(Schiff-base) ligands, Copper complexes, spectroscopic properties, X-ray crystal structures.Abstract
Three novel Copper complexes, [Cu(L1)2][CuCl2] (1), [Cu(L2)Cl] (2) and [Cu2(L3)3Cl2] (3), have been prepared by reaction of CuCl with the Schiff-base ligands L1: N,N’-bis(thiophen-2-ylmethylene)-ethane-1,2-diamine, L2: N,N’-bis(1H-pyrrol-2-ylmethylene)ethane-1,2-diamine and L3: N,N’-bis(2-nitrobenzylidene)-ethane-1,2-diamine in acetonitrile. The solid-state structures of these complexes were determined by X-ray diffraction from single crystal data and characterized by 1H and 13C NMR, IR and UV/Vis spectroscopies. This study shows that (1) is an ionic complex with a Cu(I)-centered cation and an isolated linear dichlorocuprate(I) anion, (3) is a dinuclear neutral complex of Cu(I) while (2) is a mononuclear neutral complex of Cu(II). In the three complexes, Cu is tetracordinated in different geometrical environments. The atomic arrangements and spectroscopic properties of the three complexes are reported. Complexes 1-3 exhibit, in the solid state at room temperature, photoluminescence between 320 and 550 nm.Downloads
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Published
2014-08-02
How to Cite
Toumi, A., Rzaigui, M., & Jannet, H. B. (2014). Synthesis, crystal structures and spectroscopic investigation of new Cu/Schiff-base complexes. JOURNAL OF ADVANCES IN CHEMISTRY, 10(8), 3068–3079. https://doi.org/10.24297/jac.v10i8.2257
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