Two complexes of composition [Co(HL)(2)]center dot ClO4 center dot CH3OH (1) and [Fe2L3]center dot 0.38H(2)O (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. (C) 2013 Elsevier B.V. All rights reserved
Synthesis, spectral characterization and X-ray crystal structure of Fe(III) and Co(III) complexes with an acyclic Schiff base ligand / Mouhamadou Moustapha Sow, ; Ousmane, Diouf; Mohamed, Gaye; Abdou Salam Sall, ; Paulo Pérez Lourido, ; Laura Valencia Matarranz, ; Goretti, Castro; Caneschi, Andrea; Sorace, Lorenzo. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - STAMPA. - 406:(2013), pp. 171-175. [10.1016/j.ica.2013.07.018]
Synthesis, spectral characterization and X-ray crystal structure of Fe(III) and Co(III) complexes with an acyclic Schiff base ligand
CANESCHI, ANDREA;SORACE, LORENZO
2013
Abstract
Two complexes of composition [Co(HL)(2)]center dot ClO4 center dot CH3OH (1) and [Fe2L3]center dot 0.38H(2)O (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. (C) 2013 Elsevier B.V. All rights reservedFile | Dimensione | Formato | |
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