Photoinduced Hydrogen Evolution from Water by a Simple Platinum(II) Terpyridine Derivative: A Z‐Scheme Photosynthesis

Mimicking nature: The photochemical H2 evolution from water catalyzed by a platinum(II)-based metalloviologen (PV2+) proceeds via the photoexcited state of the one-electron-reduced species (PV+.; see picture, EDTA=ethylenediaminetetraacetic acid). This artificial photosynthesis is reminiscent of the “Z-scheme photosynthesis” in green plants.