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À propos de : Structural Investigation of Langmuir and Langmuir−Blodgett Monolayers ofSemifluorinated Alkanes        

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  • Structural Investigation of Langmuir and Langmuir−Blodgett Monolayers ofSemifluorinated Alkanes
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  • The behavior of a semi-fluorinated alkane (C10F21C19H39) has been studied at the air−water interface byusing surface pressure and surface potential−area isotherms as well as infrared spectroscopy for the Langmuir−Blodgett films. In addition, based on the quantum chemical PM3 semiempirical approach, the dimer structurewas investigated, and the double helix was found to be the most stable conformation of the dimer. The obtainedresults allow us to imply that the phase transition observed in the course of the surface pressure/area isothermis due to a conformational change originating from the double helix to a vertical, single helix configuration.
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