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Titolo:
Substituent effect on the photochromic reactivity of bis(2-thienyl)perfluorocyclopentenes
Autore:
Uchida, K; Matsuoka, T; Kobatake, S; Yamaguchi, T; Irie, M;
Indirizzi:
Ryukoku Univ, Fac Sci & Technol, Dept Chem Mat, Otsu, Shiga 5202194, JapanRyukoku Univ Otsu Shiga Japan 5202194 hem Mat, Otsu, Shiga 5202194, Japan Kyushu Univ, Grad Sch Engn, Dept Chem & Biochem, Fukuoka 8128581, Japan Kyushu Univ Fukuoka Japan 8128581 Chem & Biochem, Fukuoka 8128581, Japan JST, CREST, Fukuoka 8128581, Japan JST Fukuoka Japan 8128581JST, CREST, Fukuoka 8128581, Japan Univ Osaka Prefecture, Coll Engn, Dept Appl Math Sci, Sakai, Osaka 5998531, Japan Univ Osaka Prefecture Sakai Osaka Japan 5998531 kai, Osaka 5998531, Japan
Titolo Testata:
TETRAHEDRON
fascicolo: 21, volume: 57, anno: 2001,
pagine: 4559 - 4565
SICI:
0040-4020(20010521)57:21<4559:SEOTPR>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
REVERSIBLE PHOTOCYCLIZATION; DIARYLETHENE DERIVATIVES; NONDESTRUCTIVE READOUT; FULGIDES; SYSTEMS;
Keywords:
photochromism; diarylethene; substituent effect; spectral shift; quantum yield;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Uchida, K Ryukoku Univ, Fac Sci & Technol, Dept Chem Mat, Otsu, Shiga 5202194, Japan Ryukoku Univ Otsu Shiga Japan 5202194 tsu, Shiga 5202194, Japan
Citazione:
K. Uchida et al., "Substituent effect on the photochromic reactivity of bis(2-thienyl)perfluorocyclopentenes", TETRAHEDRON, 57(21), 2001, pp. 4559-4565

Abstract

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. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 18:22:05