Visible-light sensitized photocatalytic hydrogen generation using a dual emissive heterodinuclear cyclometalated iridium(III)/ruthenium(II) complex

Happily married: Merging the 5,5′,6,6′-tetramethyl-2,2′-bibenzimidazole complexes of ruthenium(II) and iridium(III) yields the complex Ir-BBI-Ru. With broad visible-light absorption, dual emission from both chromophore units and stable metal-centered electrochemistry Ir-BBI-Ru is an advantageous photosensitizer in light-driven photocatalytic hydrogen generation.274