Relaxations, Fluctuations, Phase Transitions and Chemical Reactions in Liquid Water

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概要

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• Fluctuations and collective motions in liquid water and their effects on chemical reactions dynamics are analyzed. Liquid water is a `frustrated' system with multiple random hydrogen bond network structures, and has anomalous microscopic and macroscopic properties. Rearrangement dynamics of the hydrogen bond network induces collective motions of water molecules and energy fluctuations. Vibrational motions of photoexcited molecules strongly resonate to these water fluctuations, and thus energy dissipation processes in liquid water are extremely fast. Time scale, spatial scale and energy scale of the collective motions are analyzed by examining potential energy surfaces involved. A model of hydrogen bond network based on the functional integral method is presented and spatial and energy scales of fluctuations are discussed. Instability of hydrogen bond network is studied to understand the physical origin of these microscopic and macroscopic anomalies of liquid water.

• 理論物理学刊行会の論文
• 1991-08-30

著者

• SASAI Masaki

  Institute for Molecular Science

• Ohmine Iwao

  Institute For Molecular Science

• Sasai Masaki

  Institute For Molecular Science : Department Of Chemistry College Of General Education Nagoya Univer

• SASAI Masaki

  Institute for Molecular Science : Department of Chemistry, College of General Education, Nagoya University

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• Continuum Version for the PPP Model of Polyacetylene and Other Half-Filled Peierls Systems : Condensed Matter and Statistical Physics
• Zwitterionic and Diradical Breathers in Trans-Polyacetylene
• Theory of Electronic Structures and Lattice Distortion in Polyacetylene and Itinerant Peierls Systems. III : Coulomb Effects on Solitons and Effective Coulomb Potential in Trans-Polyacetylene
• Relaxations, Fluctuations, Phase Transitions and Chemical Reactions in Liquid Water
• Theory of Electronic Structures and Lattice Distortions in Polyacetylene and Itinerant Peierls Systems.I : UHF Transfer Matrix Method Adapted to the Long Range Coulomb Interaction and UHF States in Regular Bond Alternated Lattice
• Theory of Electronic Structures and Lattice Distortions in Polyacetylene and Itinerant Peierls Systems. IV : Coulomb Effects on Polarons
• Theory of Electronic Structures and Lattice Distortions in Polyacetylene and Itinerant Peierls Systems. II

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