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Neutral Peptide Biradicals Formed by Dissociative Electron Transfer

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journal contribution
posted on 2001-06-08, 00:00 authored by Colin S. Burns, Lakecia Rochelle, Malcolm D. E. Forbes
A new method for the generation of transient neutral biradicals in liquid solution is reported. Photoinduced electron transfer in aqueous solution of the structures shown above leads to neutral biradicals with peptide spacers. Exchange interactions were measured using time-resolved electron paramagnetic resonance (TREPR) and found to be large for the biradicals possessing two and three glycine residue spacers. These findings are compared to previous results from alkyl-spaced biradicals of similar chain length.

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