title: Coumarinyl(thienyl)thiazoles: novel photochromes with modulated fluorescence.
abstract: Novel photochromic 5-(3'-coumarinyl)-4-(3''-thienyl)thiazoles have been synthesized. These compounds display intensive fluorescence emission in the open form A, which is modulated by light. Fluorescence intensity decreases significantly upon irradiation of A with UV-light (lambda<400 nm) due to formation of the cyclic form B. Irradiation of B with visible light (lambda>470 nm) promotes its opening and the recovering of fluorescence. Novel dihetarylethenes undergo photochromic modulation of fluorescence both in solution and in polymeric matrices.
authors.affiliation: Mendeleev University of Chemical Technology, Moscow 125047, Miusskaya sq., 9, Russian Federation. traven@muctr.ru
authors.forename: Valery F
authors.initials: VF
authors.lastname: Traven
authors.forename: Andrei Y
authors.initials: AY
authors.lastname: Bochkov
authors.forename: Mikhail M
authors.initials: MM
authors.lastname: Krayushkin
authors.forename: Vladimir N
authors.initials: VN
authors.lastname: Yarovenko
authors.forename: Boris V
authors.initials: BV
authors.lastname: Nabatov
authors.forename: Sergei M
authors.initials: SM
authors.lastname: Dolotov
authors.forename: Valery A
authors.initials: VA
authors.lastname: Barachevsky
authors.forename: Irina P
authors.initials: IP
authors.lastname: Beletskaya