Synthesis and Characterisation of [2.2](5,13)Dibenzo[c;1]chrysenophane

High-dilution coupling of 5,13-bis(bromomethyl)dibenzo[c;1]chrysene (7) and 5,13-bis(sulfanylmethyl)dibenzo[c;1]chrysene 8 afforded the dithia derivative 9 which was converted, via the disulfone 10, into an unusually strained compound, [2.2](5,13)dibenzo[c;1]chrysenophane 5.