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MNDO-PM3 MO studies on the thermal isomerization of photochromic 1′,3′,3′-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2′-indoline]

✍ Scribed by Yasuo Abe; Ren Nakao; Toyokazu Horii; Satoshi Okada; Masahiro Irie


Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
370 KB
Volume
95
Category
Article
ISSN
1010-6030

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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