Exciton-like energy collection in an oligothiophene wire end-capped by Ru- and Os-polypyridine chromophores

Ru(II)- and Os(II)-polypyridine termini are linked by a quinquethiophene bridge ( the inter-metal separation is ca. 1.9 nm) wherein excitation energy flows into the luminescent Os-based unit by way of a conductive level.