Femtosecond laser selective intramolecular double proton transfer in [2,2'-bipyridyl]-3,3'-diol
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| Publication date | 1998 |
| Journal | Chemical Physics Letters |
| Volume | Issue number | 289 | 5-6 |
| Pages (from-to) | 535-540 |
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| Abstract | We report an excitation energy dependence of the dynamics of the excited-state intramolecular double-proton transfer of [2,2'-bipyridyl]-3,3'-diol in liquid solution. By means of femtosecond fluorescence upconversion experiments it is shown that an increase of the vibrational energy in the excited electronic S-1 state results in an increase of the ratio of the reaction yields of the monoketo and diketo tautomeric products. The dominance of the concerted double-proton transfer process at the lower excitation energies is evidence for an energy barrier in the dienol-monoketo reaction pathway. |
| Document type | Article |
| Published at |
https://doi.org/10.1016/S0009-2614(98)00426-6
(Final published version)
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