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Science 23 December 1966:
Vol. 154. no. 3756, pp. 1560 - 1561
DOI: 10.1126/science.154.3756.1560
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Articles

Solution Photochemistry of Thymine and Uracil

Angelo A. Lamola 1 and Jai P. Mittal 2

1 Bell Telephone Laboratories, Inc., Murray Hill, N.J. 07971.; Radiation Laboratory and Department of Chemistry, University of Notre Dame, Notre Dame, Indiana 46556
2 Radiation Laboratory and Department of Chemistry, University of Notre Dame, Notre Dame, Indiana 46556

With dienes as specific triplet quenchers, it has been shown that the photodimerization of thymine in acetonitrile proceeds entirely through the triplet state and the photodimerization of uracil in acetonitrile or in water proceeds in part through the triplet state. The photohydration of uracil probably does not involve the triplet state. Efficiencies of intersystem crossing of thymine and uracil in acetonitrile were determined.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Excited Electronic States of DNA.
J. Eisinger and R. G. Shulman (1968)
Science 161, 1311-1319
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