Versatile synthesis of small NLO-active molecules forming amorphous materials with spontaneous second-order NLO response.
J Am Chem Soc
; 125(51): 15744-5, 2003 Dec 24.
Article
em En
| MEDLINE
| ID: mdl-14677955
A novel synthetic approach to a series of bulky triarylamines substituted by various electron-withdrawing groups and forming amorphous materials is presented. Under vacuum evaporation, thin films with high optical quality are obtained and exhibit spontaneous second-order nonlinear optical activity. This unprecedented result is likely due to subtle balance between strong dipole-dipole interactions and steric crowding causing self-assembly and noncentrosymmetric local ordering, stable up to one year.
Buscar no Google
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2003
Tipo de documento:
Article