Synthesis and nonlinear optical properties of 1,3- and 1,4-disubstituted type of poly(phenyleneethynylene)s containing electron-donor and acceptor group
Synthesis and nonlinear optical properties of 1,3- and 1,4-disubstituted type of poly(phenyleneethynylene)s containing electron-donor and acceptor group
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含电子给体和受体基团的1,3-和1,4-二取代型聚亚苯基乙炔基的合成及非线性光学性能
DOI：
10.1002/(sici)1521-3935(20000301)201:5
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
K. Ohta
中科院分区：
文献类型：
--
作者：
Katsuya Koishi;Tsuyoshi Ikeda;K. Kondo;T. Sakaguchi;K. Kamada;K. Tawa;K. Ohta
本文从局域极化效应出发，研究了含电子给体和受体基团的1，3-和1，4-二取代聚苯撑乙炔的三阶非线性光学性质。在1，4-二取代聚乙烯中，电子给体和受体基团在三键附近的苯环上分开发现（苯撑乙炔基）s增加X（3）值，同时最大吸收向较长波长移动，而对于1，根据最大吸收保持在较短波长的事实，在苯环上具有电子给体和受体基团的3-二取代的聚（亚苯基乙炔基）。
The third-order nonlinear optical properties of 1,3-and 1,4-disituted poly (phenyleneethynylene)s containing electron-donor and accpetor groups were investigated in terms of the local polirization effect. The electron-donor and acceptor groups being set apart in the benzene ring adjacent to the triple bond in 1,4-disusbstituted poly (phenyleneethynylene)s was found to increase the X (3) value, together with the shift of the maximum absorption to longer wavelengths, while no significant effect was observed in the X (3) value for 1,3-disubstituted poly (phenyleneethynylene)s having both electron-donor and acceptor groups present in a benzene ring, in accordance with the fact that the maximum absorption remains at shorter wavelength.