Rcccikcd 12 h1.1y 1953 The fluorescence rehxntion kinetics from all-tins retinal in polsr nnd non-polar solvents have been investigated as a function of tempcraturc. An activrltion cnegy of ==I kcal/mole has been measured. Our results, in conjunction with pwious picosecond absorption measurcmeuts ma
Picosecond photophysics of trans-retinal
โ Scribed by R.M. Hochstrasser; D.L. Narva; A.C. Nelson
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 510 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0009-2614
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Picosecond time-resolved fluorescence spectra of all-trans retinal in hexane have been measured with 8 ps time-resolution with use of a highly sensitive streak camera. The observed fluorescence consists of a fast (r < 1 ps, ,h.ma x m 470 nm) and a slow (r = 33-34 ps, Ama x --540 nm) component. The l
Transient species which are involved in direct photoisomerization of trans-thioindigo have been invest&ted using picosecond spectroscopy\_ The long-lived transient absorption band at 600 nm observed in previous nanosecond experiments was shown to be formed on a picosecond time scale. Such ultrafast