Syntheses and Characterization of Complexes of 2,5-Thiophcncdicarbaldchyde Schiff Bases with Copper (Ⅱ)

Abstract

Abstract: Four new copper( Ⅱ ) complexes of Schiff bases, derived from condensation of 2,5-thio-phenedicarbaldehyde with o-amino-p-R-phenol (R =-(CH₃)₃, -H, -Cl,-NO₂),were prepered and characterized by means of elemental analyses, electrical conductances, magnetic susceptibility, differential thermal-thermogravimetric analyses and visible-UV, IRand ESRspectra. Complexes CuL¹ and CuL² show characteristic, of square-planar coordination by two nitrogen and two oxygen donor atoms of the ligand about the copper atom. Complexes CuL³·2H₂O and CuL⁴· H₂O which may possess hexa-coordination about the copper atom are arranged in a distorted octahedral geometry.

Key words: Copper, 2,5-Thiophenedicarbaldehyde, Schiff base

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Dai Huan, Zhong Weiqing, Yu Baoyuan . Syntheses and Characterization of Complexes of 2,5-Thiophcncdicarbaldchyde Schiff Bases with Copper (Ⅱ)[J]. Chem. J. Chinese Universities, 1990, 11(11): 1175.

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Syntheses and Characterization of Complexes of 2,5-Thiophcncdicarbaldchyde Schiff Bases with Copper (Ⅱ)

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