Electrostatic compression on non-covalent interactions: the case of π stacks involving ions
Abstract
The short interplanar π-stacking separation observed in crystalline alkali hydrogen squarate salts is demonstrated to arise from electrostatic compression due to the alkali–squarate interactions and not from cohesive interactions between π systems of the squarate anions; the behaviour is generalised to π stacking within electrostatic environments.
- This article is part of the themed collection: 1st International Conference on Noncovalent Interactions