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References (5)
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K. Ulrich, H. Port, P. Bäuerle (1989)
Photochromic thiophenefulgide absorption spectra and kinetics of photochemical isomerizationsChemical Physics Letters, 155
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M. Irie, M. Mohri (1988)
Thermally irreversible photochromic systems. Reversible photocyclization of diarylethene derivativesJournal of Organic Chemistry, 53
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Shinichiro Nakamura, M. Irie (1988)
Thermally irreversible photochromic systems: a theoretical studyJournal of Organic Chemistry, 53
- Publisher
- Oxford University Press
- Copyright
- © 1990 The Chemical Society of Japan
- ISSN
- 0009-2673
- eISSN
- 1348-0634
- DOI
- 10.1246/bcsj.63.1311
- Publisher site
- See Article on Publisher Site
Abstract
1,2-Bis(benzo[b]thiophen-3-yl)ethene derivatives, which possess thermally irreversible and fatigue resistant photochromic properties, were synthesized, cis-1,2-Dicyano-1,2-bis(2-methylbenzo[b]thiophen-3-yl)ethene 1a and 2,3-bis(2-methylbenzo[b]thiophen-3-yl)maleic anhydride 2a underwent reversible photocyclization to produce red-colored closed-ring forms with λmax at 507 nm and 544 nm, respectively. The closed-ring forms were stable for more than 3 weeks at 80 °C. The coloration/decoloration (ring closure/opening)cycles were able to be repeated more than 104 times with keeping the adequate photochromic performance.
Journal
Bulletin of the Chemical Society of Japan – Oxford University Press
Published: Jun 5, 2006