Effects of Alkoxy Substitution on the Optical Properties of 9,10-Anthraquinone and Anthracene: 2,3,6,7-Tetrapropoxy-substituted vs. 2,6-Dipropoxy-substituted Derivatives
作者:Akira Ohta、Kazuki Hattori、Yui Kusumoto、Takeshi Kawase、Takashi Kobayashi、Hiroyoshi Naito、Chitoshi Kitamura
DOI:10.1246/cl.2012.674
日期:2012.7.5
2,3,6,7-Tetrapropoxy- and 2,6-dipropoxy-substituted 9,10-anthraquinone (AQ) and anthracene (ANT) derivatives were synthesized, and their optical properties in solution and in the solid state were investigated. In AQs, the tetrapropoxy derivative exhibited a red shift of absorption in comparison with the dipropoxy derivative and ANT. In contrast, in ANTs, the dipropoxy derivative exhibited a red shift of absorption and fluorescence in comparison with the tetrapropoxy derivative and ANT. The electronic effects of alkoxy substitution could be explained by TD-DFT calculations.
合成了2,3,6,7-四丙氧基和2,6-二丙氧基取代的9,10-蒽醌(AQ)和蒽(ANT)衍生物,并研究了它们在溶液和固态中的光学性质。与二丙氧基衍生物和蒽衍生物相比,四丙氧基衍生物在蒽醌衍生物中表现出红移吸收。相反,在 ANTs 中,与四丙氧基衍生物和 ANT 相比,二丙氧基衍生物的吸收和荧光发生了红移。烷氧基取代的电子效应可以通过 TD-DFT 计算得到解释。