Molecular Reorientations and Local Structure in Nitrate Aqueous Solutions

  • B. Rosi
  • M. P. Fontana
Conference paper

Abstract

We have experimentally studied the molecular reorientational dynamics in a particular class of associated, hydrogen-bonded fluids [1]. Recently many different spectroscopic probes, such as EXAFS [2], inelastic and quasielastic neutron [3,4] and light [4,5] scattering, ultrasonic absorption [6], have demonstrated the existence of interesting structural effects taking place, at a local level, in aqueous solutions of 2–1 strong electrolytes of transition metals, like CuBr2, ZnCH2, NiCl2, CdCl2, Cu(NO3)2, at intermediate and high concentrations. This has been explained in terms of a progressive breaking of the local tetrahedral water H-bonded network, peculiar to very dilute solutions, and a contemporary appearence of a new short-range order, which reproduces the solute crystalline structure.

Keywords

Ultrasonic Absorption Molecular Reorientation Nitrate Aqueous Solution Rotational Diffusion Coefficient Quasielastic Neutron 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • B. Rosi
    • 1
  • M. P. Fontana
    • 1
  1. 1.Dipartimento di Fisica and GNSM-CISMUniversitá di ParmaParmaItaly

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