A two-step laser-induced fluorescence (TSLIF) study of 2-(2'-hydroxyphenyl)benzothiazole (HBT) in various solvents at < 100 K revealed an unusually high yield of tautomer emission resulting from the T; -tS', intersystem crossing (ISC, prime denotes the tautomer state) of the cis-keto form. The T-S I
Triplet state formation and cis → trans isomerization in the excited singlet state of the keto tautomer of 2-(2′-hydroxyphenyl)benzothiazole
✍ Scribed by Wajih Al-Soufi; Karl H. Grellmann; Bernhard Nickel
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 669 KB
- Volume
- 174
- Category
- Article
- ISSN
- 0009-2614
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Excited-state proton transfer in 2-(2'-hydroxyphenyl)benzothiaxole (HBT) dissolved in pyridine is investigated. New absorptions and fluorescence bands are detected after addition of water or NaOH to the solution. The spectra are identical to the HBT anion absorption and fluorescence. Picosecond spec
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