Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.345, 569-574, 2000
Observation of second harmonic signals from cis-dialkoxyazobenzene assisted by molecular interactions with viologen adsorbed at the glass surface
The second harmonic (SH) signal cis-dialkoxyazobenzene (cis-Azo) was obtained by using electrostatic molecular interactions with viologen (V) at the glass/liquid interface. Comparison of SH signal profiles between cis-Azo-V linked- and nonlinked molecular systems verified the presence of adsorption equilibrium between the two chromophores.