Preferred Label : photoisomerization;
IUPAC definition : Photochemical process leading to an isomerization of the substrate, either by bond
rotation, skeletal rearrangement or atom- or group- transfer.;
Scope note : photoisomerization is the primary photochemical reaction of the chromophore in several
biological photoreceptors such as retinal proteins (e.g., rhodopsin), phytochromes,
and the photoactive yellow protein.; photochemical pathways have the advantage over thermal and catalytic methods of giving
isomer mixtures (photostationary states) rich in thermodynamically unstable isomers.; typical examples are cis-trans photosomerization of alkenes, polyenes and phototautomerization.;
Origin ID : P04622;
See also
Photochemical process leading to an isomerization of the substrate, either by bond
rotation, skeletal rearrangement or atom- or group- transfer.
