- 作者: 王麗雅,吳玠璈,陳永福,王順利
- 作者服務機構: Department of Applied Chemistry, National ChiaYi University, ChiaYi, 600, Taiwan, R.O.C.
- 中文摘要: The influence of hydrogen bonding and protonation on an intra-molecular charge transfer (ICT) compound, 2,4,6-trimethoxy-2-styrylquinoline (2-StQ-2,4,6-3OMe), was investigated in the ground state and the excited state. The acid concentration strongly influences the acid-base reaction between 2-StQ-2,4,6-3OMe and trifluoroacetic acid (TFA) in a non-polar solvent. The homoconjugation effect (HE) induced by the presence of an acid was quantified by the red shift of absorption maxima. In strong protic acids, the HE was not observed. For non-polar to moderate polar solvents, the HE value increases as solvent polarity increases. When the solvent dielectric constant was higher than that of TFA, the HE value is reduced when the solvent polarity increases.
- 英文摘要: --
- 中文關鍵字: Homoconjugation; Acid-base reaction; Intramolecular charge transfer; Aggregation; Hydrogen bond; Proton transfer.
- 英文關鍵字: --