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Proceedings Paper

Provitamin D photoisomerization kinetics upon picosecond laser irradiation: role of previtamin conformational nonequilibrium
Author(s): Irina P. Terenetskaya; Yury A. Repeyev
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Paper Abstract

The effect of the irradiation intensity on the kinetics of provitamin D photoisomerization was studied by picosecond laser excitation. The changes in reaction kinetics were revealed as the intensity of laser irradiation increased from 1012 up to 2. 5 x 1014 W/m2 and model calculations gave evidence that there changes were due to the significant reduction of side product tachysterol formation. We attribute there observations to the excitation of provitamin being in non-equilibrium conformational distribution. The results obtained are believed to provide challenging possibilities for the control of photoproducts in triene photochemistry. 1.

Paper Details

Date Published: 1 May 1991
PDF: 4 pages
Proc. SPIE 1403, Laser Applications in Life Sciences, (1 May 1991); doi: 10.1117/12.57382
Show Author Affiliations
Irina P. Terenetskaya, Institute of Physics (Ukraine)
Yury A. Repeyev, Institute of Spectroscopy (Russia)

Published in SPIE Proceedings Vol. 1403:
Laser Applications in Life Sciences
Sergei A. Akhmanov; Marina Yu. Poroshina, Editor(s)

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