一种新型芴类衍生物的光谱性质研究

合成了具有大π共轭性的对称型芴类衍生物9，9-二（2-乙基已基）-2，7-（2-（4-甲氧基）苯-2，1-乙烯基）芴（简写为MO-F1u—MO）。通过元素分析、质谱、紫外-可见光谱和红外光谱对其进行了表征。测试了该染料在乙腈、二氯甲烷、四氢呋喃和正己烷4种不同极性溶剂中的线性吸收光谱和单光子荧光谱。结果发现溶剂效应对吸收光谱和荧光光谱表现出不同程度的影响，对产生这些光谱行为的主要原因进行了讨论。

A new big pi-conjugated, symmetrical fluorene derivative, 9, 9-bis (2-ethylhexyl)-2, 7-bis (2-(4-methoxy) benzene-2, 1-ethenyl) fluorene (abbreviated as MO-Flu-MO) was synthesized and characterized by elemental analysis, mass spectral, UV-Vis and IR spectral. Spectral characteristics of this compound, including linear absorption spectral and one-photon fluorescence spectral, were measured in acetonitrile, methylene chloride, tetrahydrofuran and hexane at room temperature. It was found that solvent effects have different influence on absorption spectral and fluorescence spectral, major reasons of such spectral behavior are discussed.