Quantum-mechanical ab initio simulation of the Raman and IR spectra of Mn3Al2Si3O12 spessartine
The IR and Raman spectra of spessartine garnet Mn3Al2Si3O12, are simulated with the periodic ab initio CRYSTAL code by adopting an all-electron Gaussian-type basis set and the B3LYP Hamiltonian. The frequencies of the 25 Raman active modes (3 of A1g, 8 of Eg and 14 of F2g symmetry) and of the two se...
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| Format: | Journal Article |
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Springer-Verlag GmbH
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/16416 |
| _version_ | 1848749170377097216 |
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| author | Valenzano, L. Meyer, A. Demichelis, Raffaella Civalleri, B. Dovesi, R. |
| author_facet | Valenzano, L. Meyer, A. Demichelis, Raffaella Civalleri, B. Dovesi, R. |
| author_sort | Valenzano, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The IR and Raman spectra of spessartine garnet Mn3Al2Si3O12, are simulated with the periodic ab initio CRYSTAL code by adopting an all-electron Gaussian-type basis set and the B3LYP Hamiltonian. The frequencies of the 25 Raman active modes (3 of A1g, 8 of Eg and 14 of F2g symmetry) and of the two sets of 17 F1u transverse-optical and longitudinal-optical frequencies are generated, as well as the IR oscillator strength. The agreement between calculated and experimental data is excellent: for the IR and Raman sets, the mean absolute difference jDj is 4.0 and 6.8 cm-1, respectively. Isotopic substitution permits to highlight the Mn, Al and Si participation to the various zones of the spectrum. Graphical animation, available on the authors’ web-site (<a href="http://www.crystal.unito.it/vibs/garnets/spessartine">http://www.crystal.unito.it/vibs/garnets/spessartine</a>/), provides a very readable description of the movement of atoms and groups in each vibrational mode |
| first_indexed | 2025-11-14T07:16:41Z |
| format | Journal Article |
| id | curtin-20.500.11937-16416 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:16:41Z |
| publishDate | 2009 |
| publisher | Springer-Verlag GmbH |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-164162017-02-28T01:26:46Z Quantum-mechanical ab initio simulation of the Raman and IR spectra of Mn3Al2Si3O12 spessartine Valenzano, L. Meyer, A. Demichelis, Raffaella Civalleri, B. Dovesi, R. Vibrational spectrum All-electron gaussian basis sets Ab initio Periodic calculations Garnets The IR and Raman spectra of spessartine garnet Mn3Al2Si3O12, are simulated with the periodic ab initio CRYSTAL code by adopting an all-electron Gaussian-type basis set and the B3LYP Hamiltonian. The frequencies of the 25 Raman active modes (3 of A1g, 8 of Eg and 14 of F2g symmetry) and of the two sets of 17 F1u transverse-optical and longitudinal-optical frequencies are generated, as well as the IR oscillator strength. The agreement between calculated and experimental data is excellent: for the IR and Raman sets, the mean absolute difference jDj is 4.0 and 6.8 cm-1, respectively. Isotopic substitution permits to highlight the Mn, Al and Si participation to the various zones of the spectrum. Graphical animation, available on the authors’ web-site (<a href="http://www.crystal.unito.it/vibs/garnets/spessartine">http://www.crystal.unito.it/vibs/garnets/spessartine</a>/), provides a very readable description of the movement of atoms and groups in each vibrational mode 2009 Journal Article http://hdl.handle.net/20.500.11937/16416 Springer-Verlag GmbH restricted |
| spellingShingle | Vibrational spectrum All-electron gaussian basis sets Ab initio Periodic calculations Garnets Valenzano, L. Meyer, A. Demichelis, Raffaella Civalleri, B. Dovesi, R. Quantum-mechanical ab initio simulation of the Raman and IR spectra of Mn3Al2Si3O12 spessartine |
| title | Quantum-mechanical ab initio simulation of the Raman and IR spectra of Mn3Al2Si3O12 spessartine |
| title_full | Quantum-mechanical ab initio simulation of the Raman and IR spectra of Mn3Al2Si3O12 spessartine |
| title_fullStr | Quantum-mechanical ab initio simulation of the Raman and IR spectra of Mn3Al2Si3O12 spessartine |
| title_full_unstemmed | Quantum-mechanical ab initio simulation of the Raman and IR spectra of Mn3Al2Si3O12 spessartine |
| title_short | Quantum-mechanical ab initio simulation of the Raman and IR spectra of Mn3Al2Si3O12 spessartine |
| title_sort | quantum-mechanical ab initio simulation of the raman and ir spectra of mn3al2si3o12 spessartine |
| topic | Vibrational spectrum All-electron gaussian basis sets Ab initio Periodic calculations Garnets |
| url | http://hdl.handle.net/20.500.11937/16416 |