![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
ABSTRACT
The synthesis of new photochromic 2,2-di(4′-fluoro-phenyl)-2H-1-benzopyrans fused to an indole moiety is described. Spectrokinetic data (λmax of colored form, colorability and rate constant of bleaching) obtained by UV-Visible spectroscopy and the structure of photomerocyanines elucidated by NMR spectroscopy, are reported.
Acknowledgments
The 300 MHz NMR facilities were funded by the Région Nord-Pas de Calais (France), the Ministère de l'Education Nationale, de l'Enseignement Supérieur et de la Recherche (MENESR) and the Fonds Européens de Développement Régional (FEDER). This work is supported by Calouste Gulbenkian Foundation and CPU/CRUP in the framework “Actions Universitaires Intégrées Luso-Françaises”.