The Temperature Dependence of Triplet State Reaction Rate and Quantum Yield for an Intramolecular Enone Photocycloaddition
Technical rept. no. 3, 1 May-31 Oct 1975
BOSTON UNIV MA DEPT OF CHEMISTRY
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Valence photoisomerization 320-380 nm of endo-tricyclo-deca-4, 8- diene-3-one has been studied as a function of temperature. At 4 - 51 the isomerization quantum yield is independent of temperature. In the same range the lifetime for the triplet state responsible for isomerization decreases. Arrhenius parameters for triplet decay are computed. A mechanism involving formation of a diradical intermediate which partitions to the valence isomers is suggested.
- Organic Chemistry