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Chlorophyll-water interaction during oxygen photoevolution at the octane-water interface

Institution:	1. Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, UFR des Sciences Pharmaceutiques, 31 avenue Monge, F-37200 Tours, France;2. Biological Faculty, Lomonosov Moscow State University, Vorobyevi Gori 1, Moscow 119992, Russia;3. Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia;4. MPMC-Université Pierre et Marie Curie, Case courrier 115, 4 place Jussieu, F-75252 Paris - Cedex 5, France;5. Functional Nano & Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China

Abstract:	The interaction between water and chlorophyll a dissolved in octane has been studied. Factors governing the formation of the hydrated chlorophyll oligomer with the absorption maximum at 742 nm have been identified. It has been revealed that the water photooxidation reaction sensitized by chlorophyll absorbed at the interface requires the presence of water in the octane phase during self-assemblage of the catalytic complex responsible for the reaction.

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