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. Author manuscript; available in PMC: 2022 May 2.
Published in final edited form as: J Phys Chem Lett. 2019 Jun 7;10(12):3395–3401. doi: 10.1021/acs.jpclett.9b00878

Figure 5.

Figure 5.

H2O-to-D2O exchange via the vapor phase monitored by chiral SFG. (a) Response in the O-H/N-H region (red) before and (blue) after exposure to D2O vapor. See Figure S5 and Table S3 for fittings of time-dependent spectra. (b) Amplitudes over time for the minor peak at 3191 cm−1 (top) and major peak at 3269 cm−1 (bottom). (c) Response in the O-D region before and after exposure to D2O vapor. (d) Amplitudes over time for the minor peak at 2401 cm−1 (top) and major peak at 2454 cm−1 (bottom). Solid lines in (b) and (d) are single exponential fits.