Synthesis and Non-linear Optical Properties of Two New Tridentate Mono Azo Schiff-Base Compounds

摘要

In the present work,two dissymmetric tridentate mono azo Schiff base ligands 5-((4-methyl phenyl)azo)-N-(N,N-dimethyl ethylamine)salicyl-aldimineand5-((4-nitrophenyl)azo)-N-(N,N-dimethyl ethylamine)salicyl-aldimine were prepared by the reaction of precursor ligands with appropriate N,N-dimethyI ethylamine and characterized by FTIR,~1H NMR,C NMR,C,H and N elemental analyses and UV-Vis spectroscopy methods.In the other pan of this work,some theoretical calculations were done on the structures by semi-empirical and ab-initio methods using AMI,PM3 and MINDO/1 Hamiltonians and the geometries of two synthesized tridentate ligands were optimized and then the non-linear optical properties of these ligands were characterized by theoretical calculations.