Abstract Several new push-pull azobenzene dyes were synthesized by diazonium salt coupling of electron-poor anilines with N, N-dialkylanilines. Their dipole moments and first- order hyperpolarizabilities were evaluated respectively from the concentration dependence of the dielectric constant of solutions in apolar solvents and by the electric-field-induced- second-harmonic-generation (EFISH) technique. Investigation of the influence of both ...
