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Information × Registration Number 0216U003725, 0115U005322 , R & D reports Title Photosensitive composites with picosecond optical response based on diarylethene derivatives and nanoparticles of silver and gold popup.stage_title Head Mukha Iuliia Petrivna, к.х.н. Registration Date 04-02-2016 Organization Institute of Surface Chemistry of the National Academy of Sciences of Ukraine popup.description2 The main purpose of the study was to develop the methods of investigation of derivatives of diaryletene molecules and to control of their photochromic properties. It was established that the change of furan- and terfeniazol- functional groups affects on rate of closing reaction of photochromic core. The nonlinear dependence of the reaction rate on the wavelength of its activation was discovered. Changing the wavelength from 266 nm to 340 nm reduces the time from 30% to 80% depending on the nature of the functional groups and photochromic core. Theoretical calculations indicate that with the change of functional group re-distribution of the electron density of photochromic core of the molecules occure with the corresponding change in the position and shape of the energy levels. Product Description popup.authors Снегір С.В. Ходько А.А. Хоменко В.В. popup.nrat_date 2020-04-02 Close