Affiliation:
1. Faculty of Pharmacy
2. Université Pierre et Marie Curie
3. Faculty of Physical Chemistry
4. Faculty of Chemistry
Abstract
On the basis of previously recorded Raman and IR spectral data on different
crystallohydrates of alkaline-earth 12-tungstophosphoric acid salts (obtained from mother solution
and those kept under constant relative humidity (RH) of 35%), an effort was made to determine the
position of cations in the Keggin unit. Shifts or band splitting in vibrational spectra of the salts, as
well as the changes in band intensities were found to be connected to the cation properties. The
spectral data also demonstrated a great influence of cation properties on the secondary structure of
Keggin anions and dynamics of protonic species.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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