Abstract
Use of infrared spectroscopy for quantitative studies in the fundamental-vibration regions for H2O molecules in the condensed phase is hampered by the fact that specimens with a thickness of about 1 μ must be prepared and that the interference within the layer, as well as the selective reflection, must be taken into account. Raman spectroscopy is therefore generally employed to study the vibration spectra of ice, water, and aqueous solutions. However, the deflected total internal reflection (DTIR) method [1–4], makes it possible to overcome a major portion of the difficulties inherent in infrared absorption spectroscopy. Using this technique, we were able to obtain high-contrast spectra for H2O, D2O,and HDO and to calculate their optical constants.
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