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Reference Raman spectra of synthesized CaCl2 · nH2O solids (n = 0, 2, 4, 6)
Journal of Raman spectroscopy, 2015-10, Vol.46 (10), p.822-828
Uriarte, Lucas M.
Dubessy, Jean
Boulet, Pascal
Baonza, Valentin G.
Bihannic, Isabelle
Robert, Pascal
2015
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Uriarte, Lucas M.
Dubessy, Jean
Boulet, Pascal
Baonza, Valentin G.
Bihannic, Isabelle
Robert, Pascal
Titel
Reference Raman spectra of synthesized CaCl2 · nH2O solids (n = 0, 2, 4, 6)
Ist Teil von
Journal of Raman spectroscopy, 2015-10, Vol.46 (10), p.822-828
Ort / Verlag
Bognor Regis: Blackwell Publishing Ltd
Erscheinungsjahr
2015
Quelle
Wiley Online Library
Beschreibungen/Notizen
The CaCl2 · nH2O solids with n = 0, 1, 2, 4, 6 are of importance in fluid geochemistry in both the Earth and Mars. Their unambiguous identification is thus essential. Raman spectroscopy either in laboratory or in the robotic planet exploration with Raman spectrometer may provide such identification. Published Raman spectra of these minerals were from either unknown, or poorly known or simply wrong samples. The aim of this work is to provide Raman spectra over the 100–4000 cm−1 spectral range for these solids synthesized in capillary and unambiguously identified by X‐ray diffraction. Raman spectra were collected at room temperature and at −172 °C. First interpretations of the Raman spectra of the OH stretching and bending modes of water and of the low‐wavenumber bands (100–1000 cm−1) are given according to the knowledge of their structure. The main Raman bands are given for their identification and will be helpful for ExoMars surface exploration in the next ESA‐Exomars mission in 2016–2018. Copyright © 2015 John Wiley & Sons, Ltd. Raman spectra of CaCl2 · nH2O (n = 0, 2, 4, 6) solids unambiguously identified by X‐ray diffraction (XRD) are given in the spectral range 100–4000 cm−1 at room temperature and −172 °C. Band assignment is discussed over the whole spectral range. These new data are reference spectra for geochemical and planetology exploration. An original method of synthesis of these solids in capillary is validated and allows their study by both XRD and Raman spectroscopy.
Sprache
Englisch
Identifikatoren
ISSN: 0377-0486
eISSN: 1097-4555
DOI: 10.1002/jrs.4730
Titel-ID: cdi_proquest_journals_1722059916
Format
–
Schlagworte
CaCl2 · nH2O (n = 0
,
CaCl2 · nH2O (n = 0, 2, 4, 6)
,
capillary techniques
,
experimental synthesis
,
Raman band assignment
,
XRD data
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