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Photo and collision induced isomerization of a cyclic retinal derivative: an ion mobility study

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posted on 2024-11-16, 06:50 authored by Neville J A Coughlan, Michael S Scholz, Christopher Hansen, Adam TrevittAdam Trevitt, Brian D Adamson, Evan J Bieske
A cationic degradation product, formed in solution from retinal Schiff base (RSB), is examined in the gas phase using ion mobility spectrometry, photoisomerization action spectroscopy, and collision induced dissociation (CID). The degradation product is found to be N-n-butyl-2-(β-ionylidene)-4-methylpyridinium (BIP) produced through 6π electrocyclization of RSB followed by protonation and loss of dihydrogen. Ion mobility measurements show that BIP exists as trans and cis isomers that can be interconverted through buffer gas collisions and by exposure to light, with a maximum response at λ = 420 nm.

Funding

Multiplexed capabilities for surface analysis and imaging by mass spectrometry

Australian Research Council

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Citation

Coughlan, N. J. A., Scholz, M. S., Hansen, C. S., Trevitt, A. J., Adamson, B. D. & Bieske, E. J. (2016). Photo and collision induced isomerization of a cyclic retinal derivative: an ion mobility study. Journal of the American Society for Mass Spectrometry, 27 (9), 1483-1490.

Journal title

Journal of the American Society for Mass Spectrometry

Volume

27

Issue

9

Pagination

1483-1490

Language

English

RIS ID

108296

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