Irie, Masahiro

Uchida, Kingo

Yamaguchi, Tadatsugu

The 1,2-Bis(2-thienyl)perfluorocyclopentenes that reversibly change color from colorless to yellow by UV irradiation were synthesized. Methyl and bromo substituents at 5-positions of the thiophene rings were effective to shift the absorption bands of the open-ring forms to longer wavelengths. Methyl-substitution at 4-positions shifted the absorption bands of the closed-ring forms to longer wavelength

内田, 欣吾

Substituent Effects of 1,2-Bis (2-thienyl) perfluorocyclopentenes

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