| LOUN, Jan, Jiří ČEJKA, Jiří SEJKORA, Jakub PLÁŠIL, Milan NOVÁK, Ray Leslie FROST, Sara PALMER a Eloise C. KEEFFE. A Raman spectroscopic study of bukovskýite Fe2(AsO4)(SO4)(OH) . 7H2O, a mineral phase with significant role in arsenic migration. Online. Journal of Raman Spectroscopy. 2011, roč. 42, č. 7, s. 1596-1600. ISSN 0377-0486. Dostupné z: https://dx.doi.org/10.1002/jrs.2900. [citováno 2024-04-24] |
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@article{974920,
author = {Loun, Jan and Čejka, Jiří and Sejkora, Jiří and Plášil, Jakub and Novák, Milan and Frost, Ray Leslie and Palmer, Sara and Keeffe, Eloise C.},
article_number = {7},
doi = {http://dx.doi.org/10.1002/jrs.2900},
keywords = {bukovskyite; Raman spectroscopy; arsenate; sulfate; hydroxyl ions; molecular water},
language = {eng},
issn = {0377-0486},
journal = {Journal of Raman Spectroscopy},
title = {A Raman spectroscopic study of bukovskýite Fe2(AsO4)(SO4)(OH) . 7H2O, a mineral phase with significant role in arsenic migration},
volume = {42},
year = {2011}
}
TY - JOUR
ID - 974920
AU - Loun, Jan - Čejka, Jiří - Sejkora, Jiří - Plášil, Jakub - Novák, Milan - Frost, Ray Leslie - Palmer, Sara - Keeffe, Eloise C.
PY - 2011
TI - A Raman spectroscopic study of bukovskýite Fe2(AsO4)(SO4)(OH) . 7H2O, a mineral phase with significant role in arsenic migration
JF - Journal of Raman Spectroscopy
VL - 42
IS - 7
SP - 1596-1600
EP - 1596-1600
SN - 03770486
KW - bukovskyite
KW - Raman spectroscopy
KW - arsenate
KW - sulfate
KW - hydroxyl ions
KW - molecular water
N2 - The Raman spectrum of bukovskyite [Fe2(3+)(OH)(SO4)(AsO4) . 7H2O] has been studied and compared with that of an amorphous gel containing specifically Fe, As and S, which is understood to be an intermediate product in the formation of bukovskyite. The observed bands are assigned to the stretching and bending vibrations of (SO4)2- and (AsO4)3- units, stretching and bending vibrations and vibrational modes of hydrogen-bonded water molecules, stretching and bending vibrations of hydrogen-bonded (OH)- ions and Fe3+ -(O,OH) units. The approximate range of O-H ... O hydrogen bond lengths was inferred from the Raman spectra. Raman spectra of crystalline bukovskyite and of the amorphous gel differ in that the bukovskyite spectrum is more complex, the observed bands are sharp and the degenerate bands of (SO4)2- and (AsO4)3- are split and more intense. Lower wavenumbers of delta H2O bending vibrations in the spectrum of the amorphous gel may indicate the presence of weaker hydrogen bonds compared to those in bukovskyite.
ER -
LOUN, Jan, Jiří ČEJKA, Jiří SEJKORA, Jakub PLÁŠIL, Milan NOVÁK, Ray Leslie FROST, Sara PALMER a Eloise C. KEEFFE. A Raman spectroscopic study of bukovskýite Fe2(AsO4)(SO4)(OH) . 7H2O, a mineral phase with significant role in arsenic migration. Online. \textit{Journal of Raman Spectroscopy}. 2011, roč.~42, č.~7, s.~1596-1600. ISSN~0377-0486. Dostupné z: https://dx.doi.org/10.1002/jrs.2900. [citováno 2024-04-24]
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