Abstract
The picosecond time-resolved fluorescence and transient absorption behavior of piroxicam at room temperature are reported. The keto tautomer in the excited singlet state (1K*) formed via the fast intramolecular proton transfer (≈ 20 ps) is observed. The short-lived (7.5 ns) triplet state of keto tauomer (3K*) is generated from 1K* in toluene whereas it is hardly observed in ethanol. Consequently, rapid reverse proton transfer takes place from 3K* to the enol triplet state (3E*.
| Original language | English |
|---|---|
| Pages (from-to) | 275-280 |
| Number of pages | 6 |
| Journal | Chemical Physics Letters |
| Volume | 226 |
| Issue number | 3-4 |
| DOIs | |
| Publication status | Published - 1994 Aug 19 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
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Cho, D. W., Kim, Y. H., Yoon, M., Jeoung, S. C., & Kim, D. (1994). Dynamics of excited-state intramolecular proton transfer reactions in piroxicam. Role of triplet states. Chemical Physics Letters, 226(3-4), 275-280. https://doi.org/10.1016/0009-2614(94)00742-X