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Light-driven electron accumulation in a molecular pentad


Orazietti, Margherita; Kuss-Petermann, Martin; Hamm, Peter; Wenger, Oliver (2016). Light-driven electron accumulation in a molecular pentad. Angewandte Chemie Internationale Edition, 55(32):9407-9410.

Abstract

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 CO2 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 (tau approximate to 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.

Abstract

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 CO2 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 (tau approximate to 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.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
08 University Research Priority Programs > Solar Light to Chemical Energy Conversion
Dewey Decimal Classification:540 Chemistry
Language:English
Date:1 August 2016
Deposited On:23 Jan 2017 14:14
Last Modified:23 Jan 2017 14:14
Publisher:Wiley-VCH Verlag
ISSN:1433-7851
Funders:Swiss National Science Foundation, URRP LightChEC of the University of Zurich
Publisher DOI:https://doi.org/10.1002/anie.201604030
PubMed ID:27336756

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