4.5 Article

Transient 2D-IR spectroscopy of thiopeptide isomerization

Journal

JOURNAL OF PHYSICAL CHEMISTRY B
Volume 112, Issue 28, Pages 8398-8405

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/jp801166q

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Transient 2D-IR spectra have been recorded during the photoreaction of the thioxopeptide Boc-Ala-Gly(=S)-Ala-Aib-OMe. We demonstrate the potential of transient 2D-IR spectroscopy to resolve vibrational bands hidden in conventional pump-probe spectra. Different types of transient cross-peak signals are observed, and their information content is discussed by comparison with model spectra.

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