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Titolo:
Photochromism of diarylethenes having isopropyl groups at the reactive carbons. Thermal cycloreversion of the closed-ring isomers
Autore:
Kobatake, S; Uchida, K; Tsuchida, E; Irie, M;
Indirizzi:
Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Higashi Ku, Fukuoka 8128581, Japan Kyushu Univ Fukuoka Japan 8128581 em, Higashi Ku, Fukuoka 8128581, Japan Japan Sci & Technol Corp, CREST, Higashi Ku, Fukuoka 8128581, Japan Japan Sci & Technol Corp Fukuoka Japan 8128581 u, Fukuoka 8128581, Japan Ryukoku Univ, Dept Chem Mat, Otsu, Shiga 5202194, Japan Ryukoku Univ OtsuShiga Japan 5202194 hem Mat, Otsu, Shiga 5202194, Japan
Titolo Testata:
CHEMISTRY LETTERS
fascicolo: 11, , anno: 2000,
pagine: 1340 - 1341
SICI:
0366-7022(200011):11<1340:PODHIG>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
REVERSIBLE PHOTOCYCLIZATION; SYSTEMS; DERIVATIVES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Irie, M Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Higashi Ku, Hakozaki 6-10-1, Fukuoka 8128581, Japan Kyushu Univ Hakozaki 6-10-1 Fukuoka Japan 8128581 8128581, Japan
Citazione:
S. Kobatake et al., "Photochromism of diarylethenes having isopropyl groups at the reactive carbons. Thermal cycloreversion of the closed-ring isomers", CHEM LETT, (11), 2000, pp. 1340-1341

Abstract

Diarylperfluorocyclopentenes having 2-isopropyl-5-phenylthiophene and 2-isopropyl-1-benzothiophene aryl groups underwent thermally reversible photochromism in solution. The photogenerated colored closed-ring isomers returnedto the initial colorless open-ring isomers above 60 degreesC. The activation energies of the thermal cycloreversion were estimated to be 118 and 132 kJ/mol for the thiophene and benzothiophene derivatives, respectively.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 23:22:34