The linear and non-linear optical properties of some conjugated ferrocene compounds with potent heterocyclic acceptors

被引:84
作者
Alain, V
Fort, A
Barzoukas, M
Chen, CT
BlanchardDesce, M
Marder, SR
Perry, JW
机构
[1] CALTECH,BECKMAN INST,PASADENA,CA 91125
[2] ECOLE NORMALE SUPER,DEPT CHIM,URA 1679 CNRS,F-75231 PARIS 05,FRANCE
[3] IPCMS,F-67037 STRASBOURG,FRANCE
[4] CALTECH,JET PROP LAB,PASADENA,CA 91109
基金
美国国家科学基金会; 美国国家航空航天局;
关键词
EFISH; non-linear optics; metallocene; organometallic; poling; spectroscopy;
D O I
10.1016/0020-1693(95)04847-2
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
We have synthesized donor-acceptor chromophores containing ferrocene as the donor and several different heterocyclic accepters. In each case the chromophores have an intense band at low energy which is ascribed to a metal to ligand charge-transfer band. Neutral compounds containing the 1,3-diethyl-2-thiobarbituric acid and dicyanomethylene-2, 3-dihydrobenzothiophene-1, 1-dioxide accepters have large first molecular hyperpolarizabilities (beta) in comparison to a previously examined compound 1-ferrocenyl-2-E-(4-nitrophenyl)ethylene, as measured by electric field induced second harmonic generation (EFISH), in chloroform, with 1.907 mu m fundamental radiation. Incorporation of 1-ferrocenyl-4-E,E(4-nitrophenyl)butadiene into polymethylmethacrylate at 2% molar loading, yielded after poling at 100 V mu m(-1), a polymer film with an r(33) = 0.8 pm V-1 measured at 820 nm.
引用
收藏
页码:43 / 49
页数:7
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