Year-end Sale % OFF 
Abstract
AbstractThe fast reversible photochromic molecule was synthesized with the aid of triphenylimidazolyl radicals (TPI˙) and naphthalene linker. The crystal structure, photochemical properties, and kinetics of the target compound (1,8‐TPID‐naphthalene) were investigated. 1,8‐TPID‐naphthalene photochemically cleaved into 1,8‐bisTPI˙‐ naphthalene and the color of the solution changed from colorless to green. ESR spectroscopy detected the light‐induced triplet radical pair in frozen matrix. After the UV irradiation is ceased, the back‐reaction of 1,8‐bisTPI˙‐naphthalene occurred by thermal conversion in the dark. The kinetic study on the back‐reaction revealed that the reaction obeys the first‐order kinetics with 2.04 s of half‐life time at 295 K. The activation energy and frequency factor of the back‐reaction were determined as 42.0 kJ/mol and 9.25 × 106 s−1, respectively. Copyright © 2007 John Wiley & Sons, Ltd.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
