A ruthenium terpyridine complex showing stable photocatalytic hydrogen evolution under red light†
Abstract
We report herein the synthesis of a tridentate ligand (tris-4,4′,4′′-(4′′′-pyridyl)-2,2′:6′,2′′-terpyridine) and its corresponding homoleptic ruthenium(II) complex, which shows stable hydrogen photoproduction under red light (TON of 174 molH2 molPS−1 after 210 hours). A sustained activity under blue and green lights is also observed with TONs above 360 molH2 molPS−1 after 168 hours.