期刊
JOURNAL OF RAMAN SPECTROSCOPY
卷 40, 期 5, 页码 509-512出版社
WILEY-BLACKWELL
DOI: 10.1002/jrs.2075
关键词
selenite; Raman spectroscopy; ahlfeldite; chalcomenite; clinochalcomenite; cobaltomenite; marthozite; mandarinoite
类别
资金
- Queensland University of Technology Inorganic Materials Research Program of the School of Physical and Chemical Sciences
- Australian Research Council (ARC)
Raman spectroscopy has been used to study the selenite mineral ahifeldite. A comparison is made with the Raman spectra of chalcomenite, cobaltomenite and clinochalcomenite. Selenite minerals are characterised by the position of the symmetric stretching mode which is observed at higher wavenumbers than the anti-symmetric stretching mode. The selenite ion has C-3V symmetry and four modes, 2A(1) and 2E. These modes are observed at 813, 472 cm(-1) (A(1)) and 685, 710, 727 and 367 and 396 cm(-1) (E). Bands assigned to the water stretching vibrations are observed for ahifeldite at 3385 cm(-1), for chalcomenite at 2953, 3184 and 3506 cm(-1) and for clinochalcomenite at 2909, 3193 and 3507 cm(-1). A comparison of the Raman spectra of chalcomenite, clinochalcomenite and cobaltomenite is made. The position of these bands enabled hydrogen bond distances in the selenite structure to be estimated. Hydrogen bond distances for ahifeldite, chalcomenite and clinochalcomenite were determined to be similar. Copyright (c) 2008 John Wiley & Sons, Ltd.
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