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New quinacridone derivatives: Synthesis, photophysical and third-order nonlinear optical properties
Tetrahedron ( IF 2.1 ) Pub Date : 2020-03-02 , DOI: 10.1016/j.tet.2020.131057
Jianhong Jia , Dong Feng , Yangcheng Sha , Chunsong Zhou , Guanqiu Liang , Yuanbin She

A series of quinacridone third-order nonlinear optical chromophores containing phenyl, 4-methoxyphenyl and N,N-bis(4-methoxyphenyl)aniline groups were designed and synthesized. The optical properties, electrical properties, theoretical calculations and Z-Scan of the compounds were measured and analyzed to investigate the relationship between structure and third-order NLO properties. The experimental results showed that the introduction of electron-donating groups at the N-position of quinacridone decreases the energy gap (Egap) between the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) of the molecule, and promotes intramolecular charge transfer (ICT). Quinacridone derivatives containing N, N-bis (4-methoxyphenyl) aniline have good third-order nonlinear optical properties, with the nonlinear absorption coefficient (β) value of 1.4319 × 10−13 and the second-order superpolarizability (γ) of 2.6849 × 10−33 esu.



中文翻译:

新喹ac啶酮衍生物:合成,光物理和三阶非线性光学性质

设计并合成了一系列含苯基,4-甲氧基苯基和N,N-双(4-甲氧基苯基)苯胺基的喹ac啶酮三阶非线性发色团。测量并分析了化合物的光学性质,电性质,理论计算和Z-扫描,以研究结构与三阶NLO性质之间的关系。实验结果表明,在喹ac啶酮的N位置引入供电子基团可减少分子的最高占据分子轨道(HOMO)与最低未占据分子轨道(LUMO)之间的能隙(E gap),并且促进分子内电荷转移(ICT)。含N,N的喹Quin啶酮衍生物-双(4-甲氧基苯基)苯胺具有良好的三阶非线性光学特性,其非线性吸收系数(β)值为1.4319×10 -13,二阶超极化率(γ)为2.6849×10 -33  esu。

更新日期:2020-03-03
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