CHED 1396 |
| Photoinduced double proton transfer is a fast occurring reaction that synthesizes a tautomer in the excited state of double hydrogen bonded dimers. Concentrated solutions of 7- azaindole in non-hydrogen bonding solvents exhibit two fluorescence bands. The second band is suggested to have originated from the tautomer. In order to understand this phenomenon more fully the effects of temperature have been explored. The relative intensities of the normal violet fluorescence, F1, and the green tautomer fluorescence, F2, are examined with temperature modification to determine the barrier to proton transfer in the dimer. The results show that by lowering the temperature, the intensity of F1 decreased and that of that F2 increased. |
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Undergraduate Research Poster Session: Physical Chemistry
2:00 PM-4:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster
Division of Chemical Education |