362513-29-9Relevant articles and documents
Photochromic polymers bearing various diarylethene chromophores as the pendant: Synthesis, optical properties, and multicolor photochromism
Nishi, Hiroyasu,Namari, Tomoko,Kobatake, Seiya
supporting information; experimental part, p. 17249 - 17258 (2012/05/04)
Photochromic polymers with various diarylethene derivatives were synthesized by a conventional radical polymerization of styrene derivatives having diarylethene chromophores as the pendant. All the polymers exhibited reversible photochromism in the film a
Photo-, solvent-, and ion-controlled multichromism of imidazolium- substituted diarylethenes
Nakashima, Takuya,Miyamura, Kentaro,Sakai, Toshiyuki,Kawai, Tsuyoshi
experimental part, p. 1977 - 1984 (2009/09/08)
Cationic diarylethenes with an imidazolium ring are synthesized for the first time. The imidazolium cationic moiety is connected directly to the ethene unit as one of the aryl units that take part in the photoinduced pericyclization reaction. The imidazol
Synthesis and photochromic reactivity of a diarylethene dimer linked by a phenyl group
Kobatake, Seiya,Irie, Masahiro
, p. 8359 - 8364 (2007/10/03)
A diarylethene dimer linked by a phenyl group was synthesized and the photochromic behavior was examined. Upon irradiation with ultraviolet light (λ=313 nm), a hexane solution of the diarylethene dimer (1a) turned purple blue. Upon further prolonged irradiation the color changed to blue. The purple-blue and blue colors are due to the formation of a dimer having one open- and one closed-ring forms (1b) and a dimer having two closed-ring forms (1c), respectively. Both 1b and 1c returned to 1a by irradiation with visible light (λ>500 nm). The photochromic reactivity was evaluated by measuring quantum yields of the photocyclization and photocycloreversion reactions. The photocyclization quantum yield was 0.50. The cycloreversion quantum yield from 1c to 1b (0.0026) was lower than that from 1b to 1a (0.0094).