Deactivation by proton transfer in the excited state
✍ Scribed by Th. Förster
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 294 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
The spectral turnover from molecular to cationic fluoresCence of Z-naphthylamine in sulphuric acid-water mir;tures is accompanied by strong quenching of both components. Within the turnover region deuteration increases the fluorescence quahtum yields considerably. It is concluded that in this system proton transfer participates in the internal conversion process responsible for quench~g. Two possible rnech~nisnls for this are indicated.
📜 SIMILAR VOLUMES
## Born-Oppenheimer surfaces for the lowest excited states of salicylic acid are calculated using the CND0/2-CI method. Analysis of the reaction coordinate for proton transfer indicates that the zwitterion is formed via the 'S(n, z\*) excited state, while the triplet state presents a high potentia
The proton transfer in 2-(2'-hydroxy-5 '-methylphenyl)henzotriazole is studied in nonpolar solvents, where two major ground state conformers are identified. After femtosecond excitation of the predominant species, the hydroxylic proton is transferred to the benzotriazole moiety on a time scale of 10