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Cyclization Dynamics and Competitive Processes of Photochromic Perfluorocyclopentene Dithienylethylene in Solution
I. Hamdi, G. Buntinx, , S. Delbaere, M. Takeshita, S. Aloïse
Published in Wiley-VCH Verlag
PMID: 32930503
Volume: 21
Issue: 19
Pages: 2223 - 2229
Time-resolved absorption spectroscopy measurements were performed to study the dynamics of photochromic 1,2-Bis(2,4-dimethylthiophene-3-yl)perfluoro-cyclopentene (DMTPF) in chloroform, including antiparallel conformer ring-closure reaction and parallel conformer photophysics. All characteristic times are given, discussed and compared to a previous publication concerning the close molecule substituted with phenyl rings. (Hamdi et al., PCCP, 2016). Apart from the expected photocyclization process, condensed ring by-product formation is observed and hypotheses concerning the origin of this by-product are presented. © 2020 Wiley-VCH GmbH
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PublisherData powered by TypesetWiley-VCH Verlag