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. Author manuscript; available in PMC: 2011 May 5.
Published in final edited form as: J Am Chem Soc. 2010 May 5;132(17):6041–6046. doi: 10.1021/ja908560n

Figure 4.

Figure 4

(a) Transmission and PM-IRRAS spectra for the amide region of C16 H31O - V4A4E3 (PA 4). (b) The hydrogen bond alignment quantified from the reduction of the Amide I absorbances (1630 cm−1) from transmission IR to PM-IRRAAS normalized to amibe II absorbance (1550 cm−) for PAs 1–6.