The enamine (HEAID) obtained from aniline and 2-acetyl-1,3-indandione (2AID) behaves as a bidentate ligand in coordination with copper(II) ion. Two types of crystals, apparently different in shape, were isolated and studied by single-crystal X-ray diffraction. The X-ray data for the brown rhombic crystals of compound 1 shows a mononuclear complex of Cu(II) coordinated with two EAID(-) anions, Cu(EAID)(2). The X-ray data for the green crystals of compound 2 shows a dinuclear Cu(II) complex with two OH- groups acting as bridging ligands, [Cu-2(mu-OH)(2)(EAID)(2)]. In both cases the ligand coordinates after deprotonation of the amine group. (C) Central European Science Journals.
X-ray and EPR study on copper(II) complexes with an enamine ligand / Ahmedova A; Vaz MGF; Ciattini S; Gochev G; Caneschi A; Mitewa M. - In: CENTRAL EUROPEAN JOURNAL OF CHEMISTRY. - ISSN 1895-1066. - STAMPA. - 3:(2005), pp. 146-156. [10.2478/BF02476245]
X-ray and EPR study on copper(II) complexes with an enamine ligand
CIATTINI, SAMUELE;CANESCHI, ANDREA;
2005
Abstract
The enamine (HEAID) obtained from aniline and 2-acetyl-1,3-indandione (2AID) behaves as a bidentate ligand in coordination with copper(II) ion. Two types of crystals, apparently different in shape, were isolated and studied by single-crystal X-ray diffraction. The X-ray data for the brown rhombic crystals of compound 1 shows a mononuclear complex of Cu(II) coordinated with two EAID(-) anions, Cu(EAID)(2). The X-ray data for the green crystals of compound 2 shows a dinuclear Cu(II) complex with two OH- groups acting as bridging ligands, [Cu-2(mu-OH)(2)(EAID)(2)]. In both cases the ligand coordinates after deprotonation of the amine group. (C) Central European Science Journals.File | Dimensione | Formato | |
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