Isotopic dilution study of the water/vapor interface by phase-sensitive sum-frequency vibrational spectroscopy.

@article{Tian2009IsotopicDS,
  title={Isotopic dilution study of the water/vapor interface by phase-sensitive sum-frequency vibrational spectroscopy.},
  author={C S Tian and Yuen Ron Shen},
  journal={Journal of the American Chemical Society},
  year={2009},
  volume={131 8},
  pages={2790-1}
}
Phase-sensitive sum-frequency vibrational spectroscopy (PS-SFVS) has been used to probe the isotopically diluted water/vapor interfaces in the spectral regions of OD (2200-2800 cm(-1)) and OH (3000-3800 cm(-1)) stretches. The experimentally measured Im chiS(2) spectra, where chiS(2) is the surface nonlinear susceptibility, permit direct characterization of resonances of the interfaces. The Im chiS(2) spectrum of the HDO/vapor interface that is intrinsically simpler to analyze can be deduced… CONTINUE READING

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Comparison of Im S(2)(ωIR) spectra for (a) H2O/vapor and D2O/ vapor (with frequency rescaled by a factor 1.35) interfaces and for (b and c) water/vapor interfaces of two isotopic mixtures

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