Femtosecond Double Proton-Transfer Dynamics in [2,2‘-Bipyridyl]-3,3‘-diol in Sol−Gel Glasses
✍ Scribed by Prosposito, P.; Marks, D.; Zhang, H.; Glasbeek, M.
- Book ID
- 127183231
- Publisher
- American Chemical Society
- Year
- 1998
- Tongue
- English
- Weight
- 141 KB
- Volume
- 102
- Category
- Article
- ISSN
- 1089-5639
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## Abstract __Density functional theory and quantum dynamics simulations have been used to study the double‐proton transfer reaction in 2,2′‐bipyridyl‐3,3′‐diol in the first singlet excited electronic state. This process is experimentally known to be branched: It consists of a fast, concerted react
We report on a subpicosecond fluorescence study of [2,2'-bipyridyl]-3,3'-diol using the fluorescent up-conversion technique with a time resolution of --300 fs. A new short-living fluorescence band, peaking at 568 nm, is observed, which is attributed to the emissive keto-enol tautomer. This tautomer
Spectral behaviour and quantum yields of [2,2'-bipyridyl]-3,3'-diol (BP(OH),) in sol-gel glasses modified by organic sidegroups were studied and compared with the properties of BP(OH)\* in solutions, in a plam sol-gel glass and in polymethylmethacrylate (PMMA). Fluorescence intensity of the dye in a