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A Raman and infrared spectroscopic study of Ca 2+ dominant members of the mixite group from the Czech Republic
Author(s) -
Čejka Jiří,
Sejkora Jiří,
Plášil Jakub,
Keeffe Eloise C.,
Bahfenne Silmarilly,
Palmer Sara J.,
Frost Ray L.
Publication year - 2011
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.2817
Subject(s) - raman spectroscopy , chemistry , infrared , infrared spectroscopy , ion , czech , hydrogen bond , group (periodic table) , crystallography , analytical chemistry (journal) , molecule , physics , environmental chemistry , linguistics , philosophy , organic chemistry , optics
The minerals of the mixite group—zálesíite CaCu 6 [(AsO 4 ) 2 (AsO 3 OH)(OH) 6 ]·3H 2 O from abandoned uranium deposit Zálesí, Czech Republic and calciopetersite CaCu 6 [(PO 4 ) 2 (PO 3 OH)(OH) 6 ]·3H 2 O from a quarry near Domašov na Bystřicí, northern Moravia, Czech Republic—were studied by Raman and infrared spectroscopy. The observed bands were assigned to the stretching and bending vibrations of (AsO 4 ) 3− and (AsO 3 OH) 2− ions in zálesíite, and (PO 4 ) 3− and (PO 3 OH) 2− in calciopetersite, and to molecular water, hydroxyl ions, and Cu‐(O,OH) units in both minerals. OH···O hydrogen‐bond lengths in zálesíite and calciopetersite structures were calculated with Libowitzky's empirical relation. Copyright © 2010 John Wiley & Sons, Ltd.