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Sandra Osburn, Dr. Giel Berden, Prof. Jos Oomens, Dr. Kerim Gulyuz, Prof. Nick C. Polfer, Prof. Richard A. J. O'Hair and Prof. Victor Ryzhov Structure and Reactivity of the Glutathione Radical Cation: Radical Rearrangement from the Cysteine Sulfur to the Glutamic Acid α-Carbon Atom ChemPlusChem 78

Article first published online: 2 MAY 2013 | DOI: 10.1002/cplu.201300057

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Totally radical: Gas-phase ion–molecule reactions were used to observe a radical rearrangement in the radical cation of glutathione (see scheme). This rearrangement proceeded from sulfur to the glutamic acid α-carbon atom, which was confirmed by infrared multiple photon dissociation (IRMPD) spectroscopy in two different IR regions (1000–1800 and 2800–3700 cm−1) and DFT calculations.

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