Synthesis, spectral, photolysis and electrochemical studies of mononuclear copper(II) complex with a new asymmetric tetradentate ligand: application as copper nanoparticle precursor.
A copper(II) complex with asymmetric tetradentate Schiff base ligand, obtained by the single condensation of 1,2-diaminopropane with 2-hydroxy-5-methoxy benzaldehyde was prepared. The ligand and complex were characterized by their IR, UV-Vis, FT-IR, NMR spectra and CV. Crystal structures of the mononuclear copper complex have been obtained by X-ray diffraction studies which revealed to be distorted square planner coordination geometry. The spectral data confirm coordination of ligand to copper ion center. The redox properties of complex at different scan rates exhibit grossly similar features consisting of an electrochemically pseudo-reversible Cu(II)/Cu(I) reduction at ca. -0.97 V and pseudo-reversible Cu(I)/Cu(II) oxidation at ca. -0.81 V. The copper nanoparticles with average size of 73 nm were formed by thermal reduction of copper complex in the presence of triphenylphosphine.
Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran. habibi@chem.ui.ac.ir
Mohammad Hossein
MH
Habibi
Maryam
M
Mikhak
D003300:Copper / Q000737:chemistry*; D055664:Electrochemical Techniques / Q000379:methods*; D008024:Ligands; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D000432:Methanol / Q000737:chemistry; D008968:Molecular Conformation; D010782:Photolysis; D012545:Schiff Bases / Q000138:chemical synthesis* / Q000737:chemistry*; D012996:Solutions; D017550:Spectroscopy, Fourier Transform Infrared; D013237:Stereoisomerism
D008024:Ligands; D012545:Schiff Bases; D012996:Solutions; D003300:Copper; D000432:Methanol