Facile Synthesis of Highly Efficient Phenyltetraene-Based Nonlinear Optical Chromophores for Electrooptics
Organic Letters2006Vol. 8(7), pp. 1387–1390
Citations Over TimeTop 10% of 2006 papers
Jingdong Luo, Yen‐Ju Cheng, Tae‐Dong Kim, Steven K. Hau, Sei-Hum Jang, Zhengwei Shi, Xing-Hua Zhou, Alex K.‐Y. Jen
Abstract
[reaction: see text] 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/V, respectively, at the measuring wavelength of 1.31 mum.
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