Exploring energy transfer in luminescent heterometallic ruthenium–iridium ion pairs

Abstract

Here, we report the synthesis of a luminescent ion pair with the formula [Ru(dtBubpy)₃][Ir(ppy)₂(CN)₂]₂. The crystal structure of this three component, heterometallic assembly is described, along with the luminescence properties of the salt. The modulation of the energy transfer between the blue-green-emitting iridium complex and the red-emitting ruthenium complex is also discussed as a function of both medium and concentration.