Abstract
Submillimetre wave complex refractive indices in the wavenumber range 20–100 cm−1 and temperature range 5–70°C are now available for liquid H2O and D2O. Interpretation is given in terms of a second relaxation process with characteristic time 0.53 × 10−13 s for H2O at 25°C, and enthalpy of activation 1.8 ± 0.5 kcalorie mol−1, believed to arise from rotation of molecules (or hydroxyl groups) not breaking a hydrogen bond in doing so.
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ZAFAR, M., HASTED, J. & CHAMBERLAIN, J. Submillimetre Wave Dielectric Dispersion in Water. Nature Physical Science 243, 106–109 (1973). https://doi.org/10.1038/physci243106a0
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DOI: https://doi.org/10.1038/physci243106a0
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