Rayleigh spectra of water vapour along the liquid-vapour coexistence curve are investigated. It is shown that the band observed at low frequency (O-70 cm-' ) is caused by induced effects. Dipole-induced-dipole (DID) contributions are evaluated in the low-density limit and compared with experimental
Induced contributions in the rayleigh spectra of water: A molecular dynamics simulation
โ Scribed by R. Frattini; M. Sampoli; M.A. Ricci; G. Ruocco
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 350 KB
- Volume
- 141
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
A molecular dynamics simulation of TIP4P water at T=280 K has been performed to calculate the depolarized and isotropic Raman spectra in the translational and librational region. Comparison of the isotropic spectra with experiment confirms the assignment of the low-frequency scattered light to collision-induced phenomena and allows identification of the spectral contributions arising from polarizability modulation due to short-range interactions.
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