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本文设计合成了两个典型的共轭的电子给体与电子受体（Ｄ－Ａ）化合物：２－三氰基乙烯基蒽（２－ＴＣＶＡ）与９－三氰基乙烯基蒽（９－ＴＣＶＡ），通过极性效应，温度效应对它们基态与激发态的光谱行为进行了表征。研究表明：这两个化合物均表现出显著的电荷转移（ＣＴ）吸收峰，分子受光激发后，９－ＴＣＶＡ只能在非极性溶剂中产生分子内电荷转移（ＩＣＴ）态荧光，而２－ＴＣＶＡ在极性与非极性溶剂中都能从ＩＣＴ态发光．另外，温度效应显示冻结态下，２－ＴＣＶＡ只发射ＩＣＴ态荧光，而９－ＴＣＶＡ既发射类蒽（ａｎｔｈｒａｃｅｎｅ－ｌｉｋｅ）荧光又发射ＩＣＴ态荧光，造成这一现象的主要原因可能是２－ＴＣＶＡ与９－ＴＣＶＡ分子平面性上的差异而引起分子内电荷转移相互作用不同所致。文中还利用了Ｂｉｌｏｔ－Ｋａｗｓｋｉ公式估算了化合物２－ＴＣＶＡ在激发态与基态时偶极矩的差值为１８．８Ｄ。
In this paper, two typical conjugated electron donor and electron acceptor (D-A) compounds were designed and synthesized: 2-tricyanovinyl anthracene (2-TCVA) and 9-tricyano vinylanthracene TCVA). The spectral behavior of their ground state and excited state was characterized by polar effect and temperature effect. The results show that both of these compounds show significant charge transfer (CT) absorption peaks. After the molecule is excited by light, 9-TCVA can only generate intramolecular charge transfer (ICT) fluorescence in non-polar solvents, while 2- TCVA can emit light from the ICT state in both polar and non-polar solvents. In addition, the temperature effect shows that 2-TCVA emits only ICT-like fluorescence in the frozen state, whereas 9-TCVA emits both anthracene-like fluorescence and ICT-like fluorescence. The main reason for this phenomenon may be 2-TCVA And 9-TCVA molecular differences in the plane caused by the different interactions within the charge transfer due to. The Bilot-Kawski formula is also used to estimate the difference of the dipole moment between the excited state and the ground state of compound 2-TCVA at 18.8D.