Provitamin D photoisomerization kinetics upon picosecond laser irradiation: role of previtamin conformational nonequilibrium

Irina P. Terenetskaya; Yury A. Repeyev

doi:10.1117/12.57382

1 May 1991 Provitamin D photoisomerization kinetics upon picosecond laser irradiation: role of previtamin conformational nonequilibrium

Irina P. Terenetskaya, Yury A. Repeyev

Author Affiliations +

Proceedings Volume 1403, Laser Applications in Life Sciences; (1991) https://doi.org/10.1117/12.57382
Event: Laser Applications in Life Sciences, 1990, Moscow, Russian Federation

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.

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Irina P. Terenetskaya and Yury A. Repeyev "Provitamin D photoisomerization kinetics upon picosecond laser irradiation: role of previtamin conformational nonequilibrium", Proc. SPIE 1403, Laser Applications in Life Sciences, (1 May 1991); https://doi.org/10.1117/12.57382

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