Facile Synthesis of Highly Efficient Phenyltetraene-Based Nonlinear Optical Chromophores for Electrooptics
作者:Jingdong Luo、Yen-Ju Cheng、Tae-Dong Kim、Steven Hau、Sei-Hum Jang、Zhengwei Shi、Xing-Hua Zhou、Alex K-Y. Jen
DOI:10.1021/ol060178b
日期:2006.3.1
A facile synthetic route has been developed to convert an electron-rich, sterically hindered dialkylaminodienone into a conjugated dialkylaminotrienal with good yield. The derived dialkylaminotetraene-type nonlinear optical chromophores possess an all-trans conformation and can be functionalized with fluoro-dendron to provide proper shape modification for poling. Polymers doped with two examples of these chromophores in high concentrations have been poled to afford ultra-large electrooptic coefficients (r(33)) of 208 and 262 pm/N, respectively, at the measuring wavelength of 1.31 mu m.