Dynamic processes of the water sublattice in FeTiF6·xH2O·yD2O crystal

Phase transition in FeTiF6·xH2O·yD2O crystals has been studied by Raman spectroscopy. The 611 cm−1 line corresponding to mode A1g of [TiF6]2− system does not exhibit anomalous behavior associated with the phase transition. The temperature studies showed that below the phase transition temperature, t...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Raman spectroscopy 2022-10, Vol.53 (10), p.1704-1709
Main Authors: Gerasimova YuV, Krylov, A S, AN, Vtyurin, Laptash, N M, Pogoreltsev, E I, Dubrovskiy, A A, Gerasimov MA
Format: Article
Language:English
Subjects:
Crystals
deuterium ordering
dynamics
hydrated iron fluoridotitanate
hydrogen bonds
phase transition
Phase transitions
Raman spectroscopy
spectra
Transition temperature
Transition temperatures
water sublattice
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Phase transition in FeTiF6·xH2O·yD2O crystals has been studied by Raman spectroscopy. The 611 cm−1 line corresponding to mode A1g of [TiF6]2− system does not exhibit anomalous behavior associated with the phase transition. The temperature studies showed that below the phase transition temperature, the equivalence of D2O molecules in FeTiF6·xH2O·yD2O octahedron is broken. The phase transition mechanism in the compound under study is associated with Fe(xH2O·yD2O) complex. The role of iron‐water octahedron in the FeTiF6·xH2O·yD2O system has been studied by Raman spectroscopy. A1g[TiF6]2− groups remain stable over the entire temperature range. The main role in phase transition mechanism is due to the transformation of the water complex Fe(xH2O·yD2O).
ISSN:0377-0486
1097-4555
DOI:10.1002/jrs.6430