K. Bhat et al., SYNTHESIS AND CHARACTERIZATION OF VARIOUS SCHIFF-BASES FOR NONLINEAR-OPTICAL APPLICATIONS, Materials chemistry and physics, 44(3), 1996, pp. 261-266
A series of salicylidenes have been synthesized to investigate non-lin
ear optical properties. Attempts have been made to correlate second ha
rmonic generation properties of these Schiff base compounds with ring
substitution patterns, as well as the nature of the ring substituents.
The result of double substitutions to the aniline moiety is also disc
ussed. It is reported that meta substitution in the aniline moiety giv
es comparable values for second harmonic generation with respect to ur
ea.