Published October 17, 2003 | Version v1
Journal article Metadata-only

Ion hydration under pressure

Creators

  • 1. Istituto Nazionale per la Fisica della Materia, Unita di Ricerca L'Aquila (Italy)
  • 2. Dipartimento di Fisica, Universita degli Studi dell' Aquila, Via Vetoio, 67010 Coppito, L'Aquila (Italy)
  • 3. European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble (France)
  • 4. Istituto Nazionale per la Fisica della Materia, Unita di Ricerca Roma Tre, Rome (Italy)
  • 5. Dipartimento di Fisica 'E. Amaldi', Universita degli Studi Roma Tre, Via della Vasca Navale 84, 00146 Rome (Italy)
  • 6. Istituto Nazionale per la Fisica della Materia, Unita di Ricerca Camerino (Italy)
  • 7. Dipartimento di Chimica, Universita di Roma 'La Sapienza', Piazzale A. Moro 5, 00185 Rome (Italy)
  • 8. ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom)

Description

The pressure dependence of the radial distribution of water oxygen atoms around Rb+ and Br- ions in a diluted RbBr aqueous solution has been investigated by means of x-ray absorption spectroscopy at the Br and Rb K edges up to 2.8 GPa, using a large-volume high-pressure setup developed at a third generation synchrotron radiation facility. Dramatic effects in the anion hydration structure, in particular, are observed, indicating that upon increasing pressure water undergoes a structural transformation which involves considerable molecular reorientation

Additional details

Identifiers

DOI
10.1103/PhysRevLett.91.165505;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
91
Journal Issue
16
Journal Page Range
p. 165505-165505.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36009669
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ABSORPTION SPECTROSCOPY; AQUEOUS SOLUTIONS; BROMINE IONS; HYDRATION; OXYGEN; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; RUBIDIUM BROMIDES; RUBIDIUM IONS; SPATIAL DISTRIBUTION; SYNCHROTRON RADIATION; WATER; X-RAY SPECTRA; X-RAY SPECTROSCOPY
Descriptors DEC
ALKALI METAL COMPOUNDS; BREMSSTRAHLUNG; BROMIDES; BROMINE COMPOUNDS; CHARGED PARTICLES; DISPERSIONS; DISTRIBUTION; ELECTROMAGNETIC RADIATION; ELEMENTS; HALIDES; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; IONS; MIXTURES; NONMETALS; OXYGEN COMPOUNDS; PRESSURE RANGE; RADIATIONS; RUBIDIUM COMPOUNDS; SOLUTIONS; SOLVATION; SPECTRA; SPECTROSCOPY

Optional Information

Notes
(c) 2003 The American Physical Society