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A Re‐investigation of Low Temperature Photochemistry of 11‐ cis ‐retinal Mechanism of Photoisomerization
Author(s) -
Yang LanYing,
Liu Robert S. H.
Publication year - 2006
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200600163
Subject(s) - photoisomerization , isomerization , chemistry , rhodopsin , photochemistry , chromophore , retinal , double bond , mechanism (biology) , polymer chemistry , organic chemistry , catalysis , biochemistry , philosophy , epistemology
Photoisomerization of 11‐ cis ‐retinal in an organic glass, believed to originate from the 12‐s‐ cis con‐former, gives an unstable primary photoproduct(s). The implication of simultaneous single and double bond isomerization is only consistent with an HT mechanism of isomerization. Relation of this isomerization process in the rigid medium of organic glasses with that reported for the same 11‐ cis ‐retinyl chromophore confined within the binding cavity of rhodopsin (as revealed by reported X‐ray crystal structural study) is discussed.