Sakai et al. reported a correlation between the photocatalytic potential of a dinuclear catalyst and the platination induced emission quenching. For their systems, they found, that the higher the emission quenching, the higher is the photocatalytic potential. Thus, to estimate the catalytic potential of prbimRuPt with respect to the structural homologous, namely tbbpyRuPt and fbpyRuPt, we collected steady-state emission data for prbimRuPt and its mononuclear counterpart upon 450 nm excitation in acetonitrile.