Photophysical and theoretical studies of diphenylacetylene derivatives with restricted rotation
作者:Małgorzata Szyszkowska、Cezary Czaplewski、Wiesław Wiczk
DOI:10.1016/j.molstruc.2017.02.096
日期:2017.6
(amino) and electron-acceptor (ester) groups in 2,2′ or 3,2′ positions in phenyl rings were synthesized to study the effects of intramolecular charge transfer and stiffening of the conformation by intramolecular hydrogen bond on the photophysical properties. Additionally, the derivatives with and without a steric hindrance were studied to determine the effect of conformational freedom on photophysical properties
摘要 合成了苯环 2,2' 或 3,2' 位含电子给体(氨基)和电子受体(酯)基团的二苯乙炔衍生物,研究分子内氢对分子内电荷转移和构象硬化的影响。光物理性质的结合。此外,研究了具有和不具有空间位阻的衍生物以确定构象自由度对光物理性质的影响。DFT 计算还确定了分子内氢键的持久性和相应的扭曲构象以及构象灵活性。