Experimental and Theoretical Studies on the Structural and Vibrational Spectra of Schiff Base and Their Complex

Materials and Reagents

All reactions were monitored by thin layer chromatography (TLC) using silica gel F254 supplied by MERCK, and a mixture of different polar and nonpolar solvents in varying proportions. Several spots were observed using iodine as a visualizing agent.

All melting points were determined in open capillary tubes on a BÜCHI 540 melting point apparatus.

The infrared spectra of reactants and products were recorded by potassium bromide discs on a Shimadzu FTIR-8300 Fourier Transform infrared spectrophotometer in the range extending from 4000 to 400 cm-1.

The spectra of 1H and 13C NMR were measured in Chloroform-d (CDCl3) on a Bruker AM 300 MHZ Spectrometer at the University of Oran (Algeria), relative to the internal standard tetramethylsilane (TMS). The chemical shift values were expressed in parts per million (δ, ppm). The Ultraviolet spectra of reactants and products were identified by the Optizen spectrophotometer.