Synthesis, structure and, photophysical and catalytic properties of a copper(II) complex containing bidentate (N,O) Schiff base ligand

Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata-700 032, India

E-mail: kajalrajak@gmail.com, sankubengal@gmail.com

Manuscript received 23 May 2018, accepted 09 July 2018

The bidentate ligand (5-chloro-2-(2-hydroxynaphthalen-1-yl)methyleneamino)phenyl)(phenyl)methanone) HL, was prepared by the condensation of 2-naphthaldehyde with 2-amino-5-chlorobenzophenone. The reaction of HL with Cu(OAc)₂.H₂O afforded the new complex of composition [(L)₂Cu]. The ligand HL binds the Cu^II centre in bidentate (N,O) fashion being uninegative anion by the way of phenolic proton dissociation during chelation. The complex was characterized by spectroscopic studies. X-Ray structures of [(L)₂Cu] was determined to confirm the molecular species unequivocally. The photoluminescence proper­ties of the ligand and complex were studies. Oxidation of benzyl alcohol using the newly synthesized complex as catalyst has been studied.