Paratropic ring currents in cubane

Visualisation, at the ab initio CTOCD-DZ/RHF/6-31G** level, of current density induced in the cubane molecule, C8H8, by a magnetic field along a fourfold axis shows a pair of strong face-localised paratropic ring currents in this saturated system that account for the strong deshielding effects at both face and cube centres predicted in previous calculations.