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Structural Dynamics of a Small Peptide Helix by Time Dependent Nonlinear 2D-IR Spectroscopy

P. Hamm and S. Woutersen

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Abstract

Nonlinear 3D-1R spectroscopy on the amide I states of small model peptides shows exciton spectral diffusion and inter-exciton cross-relaxation (exciton migration), which is related to ultrafast structural motion of the backbone in a site-selective fashion.

© 2000 Optical Society of America

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