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Synthesis, spectral characterization and X-ray crystal structure of Fe(III) and Co(III) complexes with an acyclic Schiff base ligand

Two complexes of composition [Co(HL)2]ClO4CH3OH (1) and [Fe2L3]0.38H2O (2) (H2L = 2-((2-(2-hydroxybenzylamino) ethylamino)methyl)phenol) have been synthesized and their structures have been characterized. The mononuclear cobalt complex 1 shows the metal ion Co(III) in an octahedral environment, being coordinated to two ligand molecules in a N4O2 core, remaining one of the two hydroxyl phenol groups of each ligand not deprotonated and uncoordinated. Instead, complex 2 is dinuclear, and each of the two metal centers is coordinated by one molecule ligand and other ligand molecule acts as bridge between the two metal centers, resulting a distorted N4O2 octahedral environment for each Fe(III) ion. In this case the two hydroxyl phenol groups of the ligand molecules are deprotonated and coordinated. Variable- temperature solid-state magnetic studies have been performed for compound 2.

Auteur(s) : Mouhamadou Moustapha Sow, Ousmane Diouf, Mohamed Gaye, Abdou Salam Sall, Paulo Pérez-Lourido, Laura Valencia-Matarranz, Goretti Castro, Andrea Canesch
Pages : 171-175
Année de publication : 2013
Revue : Inorganica Chimica acta
N° de volume : 406
Type : Article
Mise en ligne par : GAYE Mohamed Lamine