Medium effects on the direct cis-trans photoisomerization of 1,4-diphenyl-1,3-butadiene in solution.

@article{Saltiel2011MediumEO,
  title={Medium effects on the direct cis-trans photoisomerization of 1,4-diphenyl-1,3-butadiene in solution.},
  author={Jack Saltiel and Talapragada R S Krishna and Kritapas Laohhasurayotin and Yanjun Ren and Kathleen R Phipps and Paul H Davis and Weiqing Yee},
  journal={The journal of physical chemistry. A},
  year={2011},
  volume={115 11},
  pages={
          2120-9
        }
}
Quantum yields for the photoisomerization of trans,trans-1,4-diphenyl-1,3-butadiene (tt-DPB), determined in benzene, cyclohexane, methylcyclohexane, hexane, and perfluorohexane, confirm the low values reported earlier for benzene and cyclohexane and reveal even lower values in the last two solvents. In contrast to trans-stilbene (t-St), fluorescence and torsional relaxation leading to photoisomerization do not account exclusively for S(1)tt-DPB decay. Competing radiationless singlet excited… CONTINUE READING
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