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Raman and infrared study of phyllosilicates containing heavy metals (Sb, Bi): bismutoferrite and chapmanite
Author(s) -
Frost Ray L.,
Bahfenne Silmarilly,
Čejka Jiří,
Sejkora Jiří,
Plášil Jakub,
Palmer Sara J.
Publication year - 2010
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.2512
Subject(s) - raman spectroscopy , infrared , chemistry , infrared spectroscopy , hydrogen bond , ion , analytical chemistry (journal) , crystallography , molecule , physics , organic chemistry , optics
Abstract The kaolinite‐like phyllosilicate minerals bismutoferrite BiFe 3+ 2 Si 2 O 8 (OH) and chapmanite SbFe 3+ 2 Si 2 O 8 (OH) have been studied by Raman spectroscopy and complemented with infrared spectra. Tentatively interpreted spectra were related to their molecular structure. The antisymmetric and symmetric stretching vibrations of the SiOSi bridges, δ SiOSi and δ OSiO bending vibrations, ν (SiO terminal ) − stretching vibrations, ν OH stretching vibrations of hydroxyl ions, and δ OH bending vibrations were attributed to the observed bands. Infrared bands in the range 3289–3470 cm −1 and Raman bands in the range 1590–1667 cm −1 were assigned to adsorbed water. OH···O hydrogen‐bond lengths were calculated from the Raman and infrared spectra. Copyright © 2009 John Wiley & Sons, Ltd.