Synthesis and spectroscopic studies of copper(II) and nickel(II) complexes containing hydrazonic ligands and heterocyclic coligand

• Published in: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 62; no. 4; pp. 1188 - 1195
• Main Authors: Gup, Ramazan, Kırkan, Bülent
• Format: Journal Article
• Language: English
• Published: England Elsevier B.V 01.12.2005
• Subjects: Aroyl hydrazone; Copper - chemistry; Copper(II) and nickel(II) complexes; Electron Spin Resonance Spectroscopy; Heterocyclic Compounds - chemical synthesis; Heterocyclic Compounds - chemistry; Hydrazones - chemical synthesis; Hydrazones - chemistry; Hydrogen Bonding; Hydrogen-Ion Concentration; IR and electronic spectra; Isomerism; Ligands; Magnetic Resonance Spectroscopy; Magnetics; Mixed ligand; Nickel - chemistry; Schiff base; Schiff Bases - analysis; Solvents; Spectrophotometry, Infrared; Schiff base; Copper(II) and nickel(II) complexes; Aroyl hydrazone; Mixed ligand; IR and electronic spectra
• ISSN: 1386-1425
• DOI: 10.1016/j.saa.2005.04.015

Two types of copper(II) and nickel(II) complexes derived from benzophenone anthranoylhydrazone (L 1), 2-acetonaftanone anthranoylhydrazone (L 2), 4-phenylacetonaftonone anthranoylhydrazone (L 3), benzophenone salicyoylhydrazone (L 4), 2-acetonaftanon salicyoylhydrazone (L 5), 4-phenylacetonaftanon salicyoylhydrazone (L 6) and bidentate heterocyclic base [1,10-phenanthroline (phen)] with general stoichiometry [ML 2] and [ML(phen)]Cl have been synthesized and characterized by elemental analysis, infrared spectra, UV–vis electronic absorption spectra and magnetic susceptibility measurements. The effect of varying pH and solvent on the absorption behavior of both ligands and complexes have been investigated. According to the IR spectra, the ligands act as monobasic bidentate and coordination takes place in the enol tautomeric form.