Going against the flow: Os(ii)-to-Ru(ii) energy transfer in rod-like polypyridyl chromophore

Abstract

The judicious design of a unique mixed-metal Ru–Os molecular rod led to the first photoinduced energy transfer from osmium-to-ruthenium in a polypyridyl complex. The absorbed light is directed from the osmium metal center to the peripheral ruthenium moieties, where only the low energy luminescence from the heteroleptic ruthenium phen-hpp complex was observed.