RED – EDGE EXCITATION EFFECT ON THE INTERSYSTEM CROSSING OF THE INDOLE SOLUTION IN ETHANOL AT 77 K
Abstract
Spectral and kinetic characteristics of phosphorescence and fluorescence of the indole solution in ethanol at 77 K have been studied. The decrease of phosphorescence quantum yield at red – edge excitation has been observed.
About the Author
A. A. SUKHODOLA
B. I. Stepanov Institute of Physics of National Academy of Sciences of Belarus, Minsk
Belarus
Belarus
References
1. Vincent, M. Solvent relaxation around the excited state of indole: analysis of fluorescence lifetime distributions and time-dependence spectral shifts / M. Vincent, J. Gallay, A. P. Demchenko // J. Phys. Chem. – 1995. – Vol. 99. – P. 14931–14941.
2. Демченко, А. П. Люминесценция и динамика структуры белков / А. П. Демченко. – Киев, 1989.
3. Gallay, W. C. Role of heterogeneity of the solvation site in electronic spectra in solution / W. C. Gallay, R. M. Purkey // Proc. Natl. Acad. Sci. – 1970. – Vol. 67. – P. 1116–1121.
4. Ladokhin, A. S. Red-edge excitation study of nonexponential fluorescence decay of indole in solution and in a protein / A. S. Ladokhin // J. Fluorescence. – 1999. – Vol. 9. – P. 1–9.
5. Ермолаев, В. Л. Люминесценция простых производных бензола / В. Л. Ермолаев // Опт. и спектр. – 1961. – Т. 11, № 4. – С. 492–497.
6. Siebrand, W. Radiationless transitions in polyatomic molecules. II. Triplet-ground states transition in aromatic hydrocarbons / W. Siebrand // J. Chem. Phys. – 1967. – Vol. 46. – P. 2411–2415.
7. Near-ultraviolet absorption band of tryptophan. Studies using indole and 3-methylindole as models / E. H. Strickland [et al.] // Biochemistry. – 1970. – Vol. 9, N 25. – P. 4914–4920.
8. Andrews, L. J. Fluorescence characteristics of indoles in non-polar solvents: lifetime, quantum yields and polarization spectra / L. J. Andrews, L. S. Forster // Photochem. Photobiol. – 1974. – Vol. 19, N 3. – P. 353–360.
9. Schut, H. U. Polarisation der electronenbanden von aromaten 7. Mitteilung: indol, indazol, benzimidazol, benztriazol, carbazol / H. U. Schut, H. Zimmerman // Z. Elektrochem. – 1963. – Vol. 67. – P. 54–59.
10. Song, P.-S. A spectroscopic study of the polarized luminescence of indoles / P.-S. Song, W. E. Kurtin // J. Am. Chem. Soc. – 1969. – Vol. 91, N 17. – P. 4892–4906.
Review
Views: 864
Email this article 