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鉴于二茂铁衍生物在光电功能材料方面的应用,以乙酰基二茂铁和对二甲氨基苯甲醛为原料,经缩合反应合成了一种具有大π共轭体系,以二茂铁酮基为电子受体,二甲氨基苯基为电子供体的新型二茂铁衍生物,1-二茂铁基-3-(4-二甲胺基苯基)-丙-2-烯-1-酮,通过核磁共振对化合物结构进行表征。结合刮刀法和梯度升温法制备出质量分数为4%的二茂铁衍生物/聚酰亚胺复合薄膜。利用分光光度计测定了该化合物的紫外-可见吸收光谱,并通过透射光谱法得到薄膜的光学常数,采用单光束Z扫描技术测试了薄膜三阶非线性光学特性。1-二茂铁基-3-(4-二甲胺基苯基)-丙-2-烯-1-酮薄膜的三阶非线性极化率为1.0375×10-11esu,优于光纤三个数量级,可用于制备光电器件。
In view of the application of ferrocene derivatives in optoelectronic functional materials, using acetyl ferrocene and p-dimethylaminobenzaldehyde as raw materials, a kind of large π conjugated system was synthesized by condensation reaction, Novel ferrocene derivatives of dimethylaminophenyl for electron donors, 1-ferrocenyl-3- (4-dimethylaminophenyl) -prop-2-en-1- Ketone, the structure of the compound was characterized by nuclear magnetic resonance. The ferrocene derivative / polyimide composite film with mass fraction of 4% was prepared by a combination of doctor blade method and gradient heating method. The UV-Vis absorption spectra of the compounds were measured by spectrophotometer. The optical constants of the films were obtained by transmission spectroscopy. The third-order nonlinear optical properties of the films were measured by single-beam Z-scan technique. The third-order nonlinear polarizability of 1-ferrocenyl-3- (4-dimethylaminophenyl) -prop-2-en-1-one thin film is 1.0375 × 10-11esu, Order of magnitude, can be used for the preparation of optoelectronic devices.