Synthesis and photochromic behavior of fluoro 2H-1-benzopyrans containing a carbazole moiety

abstract

The synthesis of new photochromic 2,2-di(4'-fluoro-phenyl)-2H-1-benzopyrans fused to an indole moiety is described. Spectrokinetic data (lambda(max) 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.

keywords

ABSORPTION-SPECTRA; NAPHTHOPYRANS

subject category

Crystallography

authors

Oliveira, MM; Salvador, MA; Vermeersch, G; Berthet, J; Delbaere, S

our authors

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