Homoconjugation vs. Exciton Coupling in Chiral α,β-Unsaturated Bicyclo[3.3.1]nonane Dinitrile and Carboxylic Acids
作者:Gintautas Bagdžiūnas、Eugenijus Butkus、Sigitas Stončius
DOI:10.3390/molecules19079893
日期:——
enantiomerically pure bicyclo[3.3.1]nona-2,6-diene-2,6-dicarbonitrile and related acids were studied by circular dichroism spectroscopy and theoretical computations. A consideration of the molecular structure of the synthesized difunctional compounds revealed that chromophores are predisposed to transannular through-space interaction due to a favourable conformation of the bicyclic skeleton and a rather small
通过圆二色光谱和理论计算研究了对映体纯双环 [3.3.1] nona-2,6-diene-2,6-dicarbonitrile 和相关酸的手性。对合成的双官能化合物的分子结构的考虑表明,由于双环骨架的有利构象和相当小的发色团间距离,发色团倾向于跨环空间相互作用。3 和 4 中的两个丙烯腈和丙烯酸酯部分之间的非激子型耦合的证据分别是通过手性光谱和 DFT 计算获得的。