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Light‐Driven Electron Accumulation in a Molecular Pentad
Author(s) -
Orazietti Margherita,
KussPetermann Martin,
Hamm Peter,
Wenger Oliver S.
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201604030
Subject(s) - redox , photochemistry , artificial photosynthesis , reagent , electron acceptor , electron transfer , visible spectrum , electron , chemistry , acceptor , chemical physics , materials science , physics , optoelectronics , photocatalysis , inorganic chemistry , organic chemistry , catalysis , quantum mechanics , condensed matter physics
Accumulation and temporary storage of redox equivalents with visible light as an energy input is of pivotal importance for artificial photosynthesis because key reactions, such as CO 2 reduction or water oxidation, require the transfer of multiple redox equivalents. We report on the first purely molecular system, in which a long‐lived charge‐separated state ( τ ≈870 ns) with two electrons accumulated on a suitable acceptor unit can be observed after excitation with visible light. Importantly, no sacrificial reagents were employed.