Synthetically tuneable biomimetic artificial photosynthetic reaction centres that closely resemble the natural system in purple bacteria.

ABSTRACT: Porphyrin-based photosynthetic reaction centre (PRC) mimics, ZnPQ-Q2HP-C₆₀ and MP₂Q-Q2HP-C₆₀ (M = Zn or 2H), designed to have a similar special-pair electron donor and similar charge-separation distances, redox processes and photochemical reaction rates to those in the natural PRC from purple bacteria, have been synthesised and extensive photochemical studies performed. Mechanisms of electron-transfer reactions are fully investigated using femtosecond and nanosecond transient absorption spectroscopy. In benzonitrile, all models show picosecond-timescale charge-separations and the final singlet charge-separations with the microsecond-timescale. The established lifetimes are long compared to other processes in organic solar cells or other organi

SUBMITTER: Lee SH 

PROVIDER: S-EPMC5125414 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature