Abstract
The aromatic monoboranes 1, 2 and bisboranes 3, 4 of which 4 is a newly synthesised compound have been studied with reference to their supramolecular behaviour in the crystalline state. While the monoboranes crystallise purely, the bisboranes form channel-type solvent inclusions with m-xylene (3a) and nitrobenzene (4a) in the crystals, showing their potential as clathrate hosts in the realm of optically and electronically interesting compounds.