The close interaction of a C F bond with a carbonyl π–system: Attractive, repulsive, or both?
作者:Maxwell Gargiulo Holl、Mark D. Struble、Maxime A. Siegler、Thomas Lectka
DOI:10.1016/j.jfluchem.2016.06.016
日期:2016.8
We have synthesized a molecule containing a close interactionbetween a CF bond and the π–orbitals of a ketone carbonyl group. Our studies have revealed that there is a combination of attractive and repulsive forces at play: the ketone’s IR stretching mode is blue-shifted, the carbonyl is bent away from the fluorine atom, and electron deformation density maps show some significant distortion of the