The crystal structures and electrochemical studies of three 2,3-naphthalenic Schiff base copper(II) complexes

• Published in: Polyhedron Vol. 17; no. 15; pp. 2425 - 2432
• Main Authors: M. Fernández-G, Juan, Hernández-Ortega, Simón, Cetina-Rosado, Raúl, Macías-Ruvalcaba, Norma, Aguilar-Martínez, Martha
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 01.07.1998; Elsevier
• Subjects: 3-naphthalenic Schiff base complexes; Chemistry; Chemistry, Inorganic & Nuclear; copper(II) complexes; Crystallography; cyclic voltammetry; electrochemical studies; Physical Sciences; Science & Technology; X-ray crystal structure; copper(II) complexes; 3-naphthalenic Schiff base complexes; 2; X-ray crystal structure; cyclic voltammetry; electrochemical studies; MOLECULAR-STRUCTURE; 2,3-naphthalenic Schiff base complexes; BIS(N-METHYL-2-HYDROXY-1-NAPHTHALDIMINATO)COPPER(II); BROWN FORM
• ISSN: 0277-5387
• DOI: 10.1016/S0277-5387(98)00084-9

Three2,3-naphthalenic Schiff base ligands 3-hydroxy-N-cyclopentyl-2-naphthaldimine (I), 3hydroxy-N-cycloheptyl-2-naphthaldimine (II), 3-hydroxy-N-cyclooctyl-2-naphthaldimine (III) and their corresponding Cu II complexes (1-3) have been prepared and characterized. The crystal and molecular structures of bis-{(cyclopentyl)[(3-oxo-2H-naphth-2-ylidene)methyl]aminato}copper(II) (1), bis-{(cycloheptyl)[(3-oxo-2H-naphth-2-ylidene)methyl]-aminato}copper(II) (2) and bis-{(cyclooctyl)[(3-oxo-2H-naphth-2-ylidene)-methyl]-aminato}copper(II) (3), have been obtained. The X-ray study shows that the geometry around the metal atom is intermediate between square planar and tetrahedral. Additionally, electrochemical studies on the complexes (1)–(3), show a dependence of the Cu II\Cu I potentials on the grade of distortion of the structure.