Raman and infrared spectra of pollucite
Abstract
Raman light scattering, infrared reflection, and infrared absorption spectra are reported for the mineral pollucite and other cesium aluminosilicate formulations of interest to the beneficial use program of Sandia Laboratories. In addition, Raman spectra of crystals of a pure-phase pollucite are presented. Assignment of the active normal modes is made; a resonance at 200 cm/sup -1/ is tentatively assigned to a Cs cage mode; the remaining resonances are assigned to oxygen stretching vibrations of the Al-0 and Si-0 bonds, external vibrations of the aluminosilicate framework, and to more complex vibrations involving all of the atoms of the crystal. It is shown that by using a reference crystalline spectrum, oher cesium aluminosilicate structures can be identified as polycrystalline in nature with a makeup similar to pollucite. Structural alterations (broken bonds) as well as state changes (crystalline to amorphous) can also be ascertained by Raman spectroscopy. Water is found only in mineral pollucite, where it exists as a monomer, hydrogen-bonded to oxygen atoms that form its cage. Satisfactory results were obtained from a range of materials; black to milky to clear in appearance.
- Authors:
- Publication Date:
- Research Org.:
- Sandia Labs., Albuquerque, NM (USA)
- OSTI Identifier:
- 6693453
- Alternate Identifier(s):
- OSTI ID: 6693453
- Report Number(s):
- SAND-78-8232
TRN: 78-017316
- DOE Contract Number:
- EY-76-C-04-0789
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALUMINIUM COMPOUNDS; INFRARED SPECTRA; RAMAN SPECTRA; CESIUM COMPOUNDS; SILICATES; CHEMICAL BONDS; CRYSTAL STRUCTURE; ALKALI METAL COMPOUNDS; OXYGEN COMPOUNDS; SILICON COMPOUNDS; SPECTRA 400104* -- Spectral Procedures-- (-1987)
Citation Formats
Hartwig, C.M., and Ottesen, D.K. Raman and infrared spectra of pollucite. United States: N. p., 1978.
Web. doi:10.2172/6693453.
Hartwig, C.M., & Ottesen, D.K. Raman and infrared spectra of pollucite. United States. doi:10.2172/6693453.
Hartwig, C.M., and Ottesen, D.K. Mon .
"Raman and infrared spectra of pollucite". United States.
doi:10.2172/6693453. https://www.osti.gov/servlets/purl/6693453.
@article{osti_6693453,
title = {Raman and infrared spectra of pollucite},
author = {Hartwig, C.M. and Ottesen, D.K.},
abstractNote = {Raman light scattering, infrared reflection, and infrared absorption spectra are reported for the mineral pollucite and other cesium aluminosilicate formulations of interest to the beneficial use program of Sandia Laboratories. In addition, Raman spectra of crystals of a pure-phase pollucite are presented. Assignment of the active normal modes is made; a resonance at 200 cm/sup -1/ is tentatively assigned to a Cs cage mode; the remaining resonances are assigned to oxygen stretching vibrations of the Al-0 and Si-0 bonds, external vibrations of the aluminosilicate framework, and to more complex vibrations involving all of the atoms of the crystal. It is shown that by using a reference crystalline spectrum, oher cesium aluminosilicate structures can be identified as polycrystalline in nature with a makeup similar to pollucite. Structural alterations (broken bonds) as well as state changes (crystalline to amorphous) can also be ascertained by Raman spectroscopy. Water is found only in mineral pollucite, where it exists as a monomer, hydrogen-bonded to oxygen atoms that form its cage. Satisfactory results were obtained from a range of materials; black to milky to clear in appearance.},
doi = {10.2172/6693453},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 1978},
month = {Mon May 01 00:00:00 EDT 1978}
}