Vibrational spectroscopic characterization of the sulphate mineral leightonite K2Ca2Cu(SO4)4⋅2H2O – Implications for the molecular structure
| Data(s) |
2013
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| Resumo |
The mineral leightonite, a rare sulphate mineral of formula K2Ca2Cu(SO4)4.2H2O, has been studied using a combination of electron probe and vibrational spectroscopy. The mineral is characterized by an intense Raman band at 991 cm-1 attributed to the SO2- 4 m1 symmetric stretching mode. A series of Raman bands at 1047, 1120, 1137, 1163 and 1177 cm-1 assigned to the SO2- 4 m3 antisymmetric stretching modes. The observation of multiple bands shows that the symmetry of the sulphate anion is reduced. Multiple Raman and infrared bands in the OH stretching region shows that water in the structure of leightonite is in a range of molecular environments. |
| Formato |
application/pdf |
| Identificador | |
| Publicador |
Elsevier BV |
| Relação |
http://eprints.qut.edu.au/70034/4/70034.pdf DOI:10.1016/j.saa.2013.04.030 Frost, Ray L., López, Andrés, Xi, Yunfei, Scholz, Ricardo, Graça, Leonardo Martins, & Lagoeiro, Leonardo (2013) Vibrational spectroscopic characterization of the sulphate mineral leightonite K2Ca2Cu(SO4)4⋅2H2O – Implications for the molecular structure. Spectrochimica Acta Part A : Molecular and Biomolecular Spectroscopy, 112, pp. 90-94. |
| Direitos |
Copyright 2013 Elsevier B.V. This is the author’s version of a work that was accepted for publication in Spectrochimica Acta Part A : Molecular and Biomolecular Spectroscopy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Spectrochimica Acta Part A : Molecular and Biomolecular Spectroscopy, [VOL 112, (2014)] DOI: 10.1016/j.saa.2013.04.030 |
| Fonte |
School of Chemistry, Physics & Mechanical Engineering; Science & Engineering Faculty |
| Palavras-Chave | #030606 Structural Chemistry and Spectroscopy #Leightonite #Sulphate #Molecular structure #Raman spectroscopy #Infrared spectroscopy |
| Tipo |
Journal Article |
