Biphasic water splitting by osmocene.
The photochemical reactivity of osmocene in a biphasic water-organic solvent system has been investigated to probe its water splitting properties. The photoreduction of aqueous protons to hydrogen under anaerobic conditions induced by osmocene dissolved in 1,2-dichloroethane and the subsequent water splitting by the osmocenium metal-metal dimer formed during H(2) production were studied by electrochemical methods, UV-visible spectrometry, gas chromatography, and nuclear magnetic resonance spectroscopy. Density functional theory computations were used to validate the reaction pathways.
Laboratory of Physical and Analytical Electrochemistry, Ecole Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland.
Peiyu
P
Ge
Tanya K
TK
Todorova
Imren Hatay
IH
Patir
Astrid J
AJ
Olaya
Heron
H
Vrubel
Manuel
M
Mendez
Xile
X
Hu
Clémence
C
Corminboeuf
Hubert H
HH
Girault
D002849:Chromatography, Gas; D004563:Electrochemistry / Q000379:methods*; D005025:Ethylene Dichlorides; D006859:Hydrogen / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D010777:Photochemistry; D012993:Solar Energy; D013056:Spectrophotometry, Ultraviolet; D014867:Water / Q000737:chemistry*
D005025:Ethylene Dichlorides; D009942:Organometallic Compounds; D014867:Water; C033842:osmocene; C024565:ethylene dichloride; D006859:Hydrogen; D010100:Oxygen