Premium
A WAVELENGTH EFFECT ON UROCANIC ACID E/Z PHOTOISOMERIZATION *
Author(s) -
Morrison Harry,
Bernasconi Christian,
Pandey Ganesh
Publication year - 1984
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1984.tb04632.x
Subject(s) - urocanic acid , photoisomerization , wavelength , photochemistry , chemistry , absorption edge , absorption (acoustics) , optics , optoelectronics , materials science , physics , band gap , isomerization , amino acid , biochemistry , catalysis , histidine
E‐Urocanic acid exhibits a single, featureless, long‐wavelength absorption band with λ max ˜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.