| Affiliation: | 1. Univ. Lille, CNRS, UMR 8516 – LASIR – Laboratoire de Spectrochimie Infrarouge et Raman, 59000 Lille, France;2. Univ. Lille, CNRS, UMR 8516 – LASIR – Laboratoire de Spectrochimie Infrarouge et Raman, 59000 Lille, France School of Advanced Sciences, Department of Chemistry, Vellore Institute of Technology-Vellore, Tamil Nadu, India, 632014;3. Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo 1, Saga, 840-8502 Japan |
| Abstract: | 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. |
