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Time-resolved resonance Raman and molecular orbital studies of the structures of the transient species involved in the photochromic reaction of 2,2′-spirobi[2H-1-benzopyran]

✍ Scribed by Syuichi Hashimoto; Atsuhiko Shimojima; Tetsuro Yuzawa; Hidefumi Hiura; Jiro Abe; Hiroaki Takahashi


Book ID
107806657
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
706 KB
Volume
242
Category
Article
ISSN
0022-2860

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Resonance raman studies of transient spe
✍ Hiroaki Takahashi; Keiichi Yoda; Hiroaki Isaka; Tomoyuki Ohzeki; Yoshiki Sakaino 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 472 KB

Resonance Raman spectra of transient species of 1 ',3',3'-trimethylspiro-[2H-l-benzopyran-2,2'-indoline] in various solvents reveal that at least four transients having merocyanine-like structures are involved in the photochromism of this compound. It is concluded that the transient species in aliph