Chemical Communications, Journal Year: 2024, Volume and Issue: 60(49), P. 6239 - 6255
Published: Jan. 1, 2024
There are various interactions that either partially fit or do not the currently accepted definitions of hydrogen bond. However, they possess characteristics this interaction. It seems it is partly connected to fact these precise. The typical 3c-4e (three centres - four electrons) A-H⋯B bond characterized by single-atom A and B highly electronegative. On other hand, non-typical well characterised uncommon proton donors and/or acceptors. cases multi-centre acceptors, π-electron σ-electron systems known such designated as A-H⋯π A-H⋯σ bonds, respectively. with acceptors majority π⋯H
Language: Английский