Molecular recognition. Self-assembly of molecular trigonal prisms and their host-guest adducts

Two supramolecular trigonal prisms, each bearing three molecular clefts are shown to form 1: 6 and 1: 7 host - guest complexes with 9-methylanthracene and one of the prisms forms a 1: 2 host - guest complex with a tritopic tri-anthracene guest that registers with the recognition sites of the host.