354528-33-9Relevant academic research and scientific papers
Substituent effect on the photochromic reactivity of bis(2-thienyl)perfluorocyclopentenes
Uchida, Kingo,Matsuoka, Toyokazu,Kobatake, Seiya,Yamaguchi, Tadatsugu,Irie, Masahiro
, p. 4559 - 4565 (2007/10/03)
Substituent effect on the photochromic reactivity of bis(2-thienyl)perfluorocyclopentenes was examined. Introduction of phenyl groups having electron-donating substituents on the para-position of the phenyl ring to the 5-position of the thiophene rings shifted the absorption bands of the open-ring isomers to longer wavelengths and reduced the quantum yield of the cyclization reactions. The substitution with p-(N,N-diethylamino)phenyl groups prohibited the cyclization reaction. The absorption spectra of the closed-ring isomers were not influenced by the substitution.
