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. Author manuscript; available in PMC: 2013 Aug 16.
Published in final edited form as: J Phys Chem B. 2012 Aug 1;116(32):9627–9634. doi: 10.1021/jp304613b

FIG. 4.

FIG. 4

The difference spectrum generated by subtracting the A57-labeled spectrum from the unlabeled spectrum. The theory result is for the spectral density at 27 °C, and experiment is at 25 °C.72 The theoretical and experimental difference spectra are normalized by their values at the peak near 1650 cm−1.