Since the synthesis of [Ru(bpy)(3)](2+) and its subsequent study in excited-state electron-transfer reactions, much attention has focused on the inclusion of multiple ruthenium chromophores into single molecules. Systems of this type are of interest due to their potential for photoinitiated electron collection. This report illustrates the application of a system with two ruthenium polypyridine chromophores to this problem. This represents the first report of photoinitiated electron collection wherein two covalently coupled ruthenium chromophores function within the same molecule to bring about electron collection. The system described herein is of the form {[(bpy)(2)Ru(dpb)]2IrCl2}(5+) (bpy = 2,2’-bipyridine and dpb = 2,3-bis(2-pyridyl)benzoquinoxaline) and is one in a series of mixed-metal trimetallics designed and developed in our laboratory. Photolysis of this complex in the presence of an electron donor, dimethylaniline, leads to the production of the doubly reduced species, {[(bpy)(2)Ru(dpb(-))]2IrCl2}(3+). Following photolysis, the complex now contains two reduced dpb bridging ligands coordinated to a central iridium core. In a previous study we have shown that the central core, [Ir(dpb)(2)Cl-2](+), is able to deliver electrons "stored" on the bridging ligands to a substrate. The details of the photoinitiated electron collection process are described herein.