Application of a compact synchrotron radiation facility to studies
on the structure of solvated chloride and iodide ions in various solvents
K. Ozutsumi and H. Ohtaki
Department of Applied Chemistry, Faculty of Science
and Engineering, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu
525-8577, Japan
Abstract:
A beamline equipped on the compact superconductive synchrotron radiation
(SR) facility at Ritsumeikan University was designed for performing
extended X-ray absorption fine structure (EXAFS) analyses of solutions
and solids. The introduction of three different crystals, Si(220), Ge(220),
and InSb(111), as the monochromator of the EXAFS spectrometer covers
the K-edge absorption energy range of elements with low atomic numbers
from silicon (atomic number 14) through zinc (30). The LIII-edge
of the iodide ion could be measured by Si(220) and Ge(220). It is, however,
not possible to measure the absorption of the bromide ion with this
equipment. Using this spectrometer, the solvation structure of Cl-
and I- ions was investigated in water, methanol, and ethanol
under atmospheric pressure.
*Lecture presented at the European Molecular Liquids
Group (EMLG) Annual Meeting on the Physical Chemistry of Liquids: Novel
Approaches to the Structure, Dynamics of Liquids: Experiments, Theories,
and Simulation,Rhodes, Greece, 7-15 September 2002. Other presentations
are published in this issue, pp. 1-261.
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