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Photoinduced biphasic hydrogen evolution: decamethylosmocene as a light-driven electron donor
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posted on 2020-01-11, 14:32 authored by Peiyu Ge, Astrid J. Olaya, Micheál D. Scanlon, Imren Hatay Patir, Heron Vrubel, Hubert H. GiraultExcitation of the weak electron donor decamethylosmocene on illumination with white light produces an excited‐state species capable of reducing organically solubilized protons under biphasic conditions. Insight into the mechanism and kinetics of light‐driven biphasic hydrogen evolution are obtained by analysis with gas chromatography, cyclic voltammetry, and UV/Vis and 1H NMR spectroscopy. Formation of decamethylosmocenium hydride, which occurs prior to hydrogen evolution, is a rapid step relative to hydrogen release and takes place independently of light activation. Remarkably, hydride formation occurs with greater efficiency (ca. 90 % conversion) under biphasic conditions than when the reaction is carried out in an acidified single organic phase (ca. 20 % conversion). Cyclic voltammetry studies reveal that decamethylosmocene has a higher proton affinity than either decamethylferrocene or osmocene
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Study on Aerodynamic Characteristics Control of Slender Body Using Active Flow Control Technique
Japan Society for the Promotion of Science
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ChemPhysChem;14 (10), pp. 2308-2316Publisher
Wiley and Sons LtdNote
peer-reviewedOther Funding information
ERC, Swiss National Science FoundationRights
This is the author accepted peer reviewed version of the following article:Photoinduced biphasic hydrogen evolution: decamethylosmocene as a light-driven electron donor, 2013, 14 (10),pp. 22308-2316 which has been published in final form at https://doi.org/10.1002/cphc.201300122. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. http://olabout.wiley.com/WileyCDA/Section/id-828039.html#termsLanguage
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