The nature of stacking interactions of the resonance-assisted hydrogen-bridged rings

The Symmetry Adapted Perturbation Theory (SAPT) energy decomposition analysis is applied for studying the nature of stacking interaction occurring in homodimers of resonance-assisted hydrogen-bridged (RAHB) rings and heterodimers of RAHB and benzene rings. The contribution of various energy terms is dependent on the composition of a RAHB ring and can be rationalized based on electrostatic potential maps