Ultrashort Hδ+⋯Hδ− intermolecular distance in a supramolecular system in the solid state

Abstract

Herein we report experimental evidence for the shortest intermolecular distance reported for two electronically-different hydrogen atoms in the solid state. The H^δ+⋯H^δ− non-covalent interaction was studied using theoretical calculations indicating that electrostatic and dispersion forces are of paramount importance.