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Synthesis and characterization of novel M(II) (M= Co(II), Ni(II), Cu(II), Zn(II) or Cd(II)) complexes with N,O-donor ligand (E)-1- (1-(1H-pyrrol-2-yl)ethylidene)carbonohydrazide (H5L).

The Schiff bases (H3L), derived from 2-acetylpyrrole and carbonohydrazide, and its reactions with some transition metal ions (Co(II), Ni(II), Cu(II), Zn(II) and Cd(II)) afforded complexes of formulae [M(H5LA)2(H2O)x]?2(NO3)?(CH3CN)z?(H2O)y-x (M= Co, Ni, Cu or Zn ; 0 ? x < y ? 3, z = 0 or 1) and {Cd(H4LA)(NO3)}n. These compounds have been characterized by means of elemental analysis, UV–Vis spectroscopy, IR spectroscopy, 1H and 13C NMR, molar conductance and room temperature magnetic measurements. Single crystal X-ray analysis of the cadmium complex {Cd(H4LA)(NO3)}n has revealed the nature of the structure with the space group C2/c. The cadmium (II) ion is six-coordinated. The coordination polyhedron of the cadmium complex can be best described as a distorted trigonal antiprism.

Auteur(s) : Mouhamadou Moustapha SOW, Moussa DIENG, Farba Bouyagui Tamboura, Ousmane DIOUF, Mohamed Gaye
Pages : 52-59
Année de publication : 2016
Revue : IOSR Journal of Applied Chemistry
N° de volume : 9(11)
Type : Article
Mise en ligne par : GAYE Mohamed Lamine