| 光谱学与光谱分析 |
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| Raman Active Vibrations of Aluminosilicates |
| PAN Feng1, 3, YU Xue-hui1, MO Xuan-xue1, YOU Jing-lin2, WANG Chen1, CHEN Hui2, JIANG Guo-chang2 |
1. China University of Geosciences, Beijing 100083, China
2. Shanghai University, Shanghai 200072, China
3. Institute of Clothing Technology, Beijing 100029, China |
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Abstract Raman spectra of aluminosilicate minerals, namely kyanite, andalusite, and sillimanite and K2O-Al2O3-SiO2 glasses were recorded. Four alumino-silicon tetrahedral model clusters were calculated by self-consistent (SCF) molecular orbital ab-initio calculation of the quantum chem (QC) method. The result shows a decrease tendency in Raman frequencies in the 800-1 200 cm-1 frequency region with increase in four-coordinated Al content, which is assigned to the Si—Onb symmetry stretching vibrations. The Raman spectra in the 700-800 cm-1 frequency region is attributed to Al—Onb symmetry stretching vibrations.
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Received: 2005-09-28
Accepted: 2005-12-18
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Corresponding Authors:
PAN Feng
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