Measurements of the proton momentum distribution n(p) in water from ambient conditions to above the supercritical point are compared with theoretical calculations based on a recently developed polarizable water model. The n(p) along the H-bond direction is narrower in the dense phases, and approaches that of the isolated molecule in the more dilute phases. The theoretical model, which includes only electrostatic interactions, is unable to explain the softening of the local potential experienced by the proton in the dense phases, but it accurately predicts the n(p) for the dilute phases.

Pantalei, C., Pietropaolo, A., Senesi, R., Imberti, S., Andreani, C., Mayers, J., et al. (2008). Proton momentum distribution of liquid water from room temperature to the supercritical phase. PHYSICAL REVIEW LETTERS, 100(17) [10.1103/PhysRevLett.100.177801].

Proton momentum distribution of liquid water from room temperature to the supercritical phase

PANTALEI, CLAUDIA;PIETROPAOLO, ANTONINO;SENESI, ROBERTO;IMBERTI, SILVIA;ANDREANI, CARLA;
2008

Abstract

Measurements of the proton momentum distribution n(p) in water from ambient conditions to above the supercritical point are compared with theoretical calculations based on a recently developed polarizable water model. The n(p) along the H-bond direction is narrower in the dense phases, and approaches that of the isolated molecule in the more dilute phases. The theoretical model, which includes only electrostatic interactions, is unable to explain the softening of the local potential experienced by the proton in the dense phases, but it accurately predicts the n(p) for the dilute phases.
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Rilevanza internazionale
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Sì, ma tipo non specificato
Settore FIS/03 - Fisica della Materia
English
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Pantalei, C., Pietropaolo, A., Senesi, R., Imberti, S., Andreani, C., Mayers, J., et al. (2008). Proton momentum distribution of liquid water from room temperature to the supercritical phase. PHYSICAL REVIEW LETTERS, 100(17) [10.1103/PhysRevLett.100.177801].
Pantalei, C; Pietropaolo, A; Senesi, R; Imberti, S; Andreani, C; Mayers, J; Burnham, C; Reiter, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/31311
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