A wavelength effect on urocanic acid E/Z photoisomerization |
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| Authors: | H Morrison C Bernasconi G Pandey |
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| Affiliation: | Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA |
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| Abstract: | Abstract E-Urocanic acid exhibits a single, featureless, long-wavelength absorption band with λmax˜258 nm in water. However, the quantum efficiency for E→Z photoisomerization is wavelength dependent in this region, with the maximum value at the low energy edge of the band (e.g. 313 nm) and appreciably lower efficiencies measured at ≦ 300 nm. |
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