三种有机的吸收两个光子的环烷酮发色团2,4-双[4-(二乙基氨基)亚苄基]环丁酮,C 26 H 32 N 2 O(I),2,5-双[4-(二乙基氨基)亚苄基]环戊酮,C 27 H 34 N 2 O(II)和2,6-二[4-(二乙氨基)亚苄基]环己酮,C 28 H 36 N 2 O(III)是通过4-(二乙氨基)苯甲醛与相应的环烷酮之间的反应获得的,并通过单晶X射线衍射研究以及密度泛函理论(DFT)量子化学计算进行了表征。该系列的分子具有三个主要片段,即中央受体(A)和两个末端供体(D 1和D 2),代表D 1 –π– A –π– D 2分子设计的实例。所有这三种化合物均以不对称单元中的两个晶体学独立分子结晶(A和B)并通过分子Et 2 N-C 6 H 4 -C = CC (= O)-C = CC 6 H 4 -NEt 2主链(弓形或线性)的构象来区分二乙氨基取代基(与分子平面同平面或反平面
Effect of alicyclic ring size on the photophysical and photochemical properties of bis(arylidene)cycloalkanone compounds
作者:Qianli Zou、Yuxia Zhao、Nikolay S. Makarov、Jochen Campo、Hao Yuan、De-Cai Fang、Joseph W. Perry、Feipeng Wu
DOI:10.1039/c2cp41952a
日期:——
different alicyclic rings was prepared. The effects of alicyclic ringsize on the photophysical, photochemical and electrochemical properties of these compounds were investigated systematically. We found that an increase of the number of carbons in the central alicyclic ring leads to changes in geometry, which has significant effects on the conjugation, and photophysical and photochemical properties. These