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Information × Registration Number 0216U005361, 0113U004649 , R & D reports Title Switching effect study of diarylethene molecules self assembled on Au (111) surface. popup.stage_title Head Marchenko Oleksandr Anatolijovych, Доктор фізико-математичних наук Registration Date 22-01-2016 Organization Institute of physics NASU popup.description2 The aim of the work was to develop methods of research and control of photochromic properties of diarylethene molecules. The approach allowing of studying of dynamics of the photo-induced ring closing photochromic reaction of diarylethene in the femtosecond time range is developed. It is found that the functional groups necessary for chemical binding of molecules to the surface of a metal electrode, affect the rate of closure of the photochromic nucleus. The theoretical calculation of the energy levels of correspondent molecules in the ground and excited states were carried out to explain observed effects. It is shown that ring-closing reaction involves several successive intramolecular processes associated with redistribution of the electron density. Therefore, taking into account difference nature of the functional groups (electron donor or acceptor) of the molecules, the monitored dynamics of photochromic reaction that involved hybridization of molecules orbitals shows a different character. Product Description popup.authors Марченко Олександр Анатолійович Сененко Антон Ігорович Снегір Сергій Вікторович popup.nrat_date 2020-04-02 Close