Hexa-peri-hexabenzocoronene decorated with an allenylidene ruthenium complex - almost a flyswatter

摘要

Carbon-rich ruthenium allenylidene complexes bearing either a hexaarylbenzene (HAB) or a hexa-peri-hexabenzocoronene (HBC) substituent were synthesised. This was achievedviathe corresponding propargyl alcohols with HAB and HBC substituents, which were accessiblevia3 or 4 step reaction cascades. Reaction of the propargyl alcohols HC=C(OH)Ph(HAB) and HC=C(OH)Ph(HBC) with [RuCl(eta(5)-C5H5)(PPh3)(2)] yielded the complexes [Ru(eta(5)-C5H5)(=C=C=C(HAB)(Ph))(PPh3)(2)]PF6 and [Ru(eta(5)-C5H5)(=C=C=C(HBC)(Ph))(PPh3)(2)]PF6. The latter of which shows interesting pi-pi-stacking behaviour in the solid state as well as aggregation in solution.