Measurements of the stabilities of isolated retinal chromophores.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 28208402.
- Also identified by DOI 10.1103/PhysRevE.95.012406.
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Abstract
The barrier energies for isomerization and fragmentation were measured for a series of retinal chromophore derivatives using a tandem ion mobility spectrometry approach. These measurements allow us to quantify the effect of charge delocalization on the rigidity of chromophores. We find that the role of the methyl group on the C13 position is pivotal regarding the ground state dynamics of the chromophore. Additionally, a correlation between quasi-equilibrium isomer distribution and fragmentation pathways is observed.
Medical subject headings
- Retina
- Rhodopsin