A Joint Experimental and Theoretical Investigation on Nonlinear Optical (NLO) Properties of a New Class of Push-Pull Spirobifluorene Compounds
作者:Fabio Rizzo、Marco Cavazzini、Stefania Righetto、Filippo De Angelis、Simona Fantacci、Silvio Quici
DOI:10.1002/ejoc.201000335
日期:2010.7
A newclass of push-pullspirobifluorenecompounds 1-5 has been synthesized. The nonlinearoptical (NLO) properties (first and second hyperpolarizability β and γ, respectively) of spirobifluorene derivatives have been investigated for the first time using electric field induced second harmonic (EFISH) and third harmonic generation (THG) methods. Moreover, a comparison with the corresponding push-pull