Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure.
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/4169 https://doi.org/10.1016/j.molstruc.2013.08.038 |
Resumo: | We have studied the mineral olmiite CaMn[SiO3(OH)](OH) which forms a series with its calcium analogue poldervaartite CaCa[SiO3(OH)](OH) using a range of techniques including scanning electron microscopy, thermogravimetric analysis, Raman and infrared spectroscopy. Chemical analysis shows the mineral is purê and contains only calcium and manganese in the formula. Thermogravimetric analysis proves the mineral decomposes at 502 °C with a mass loss of 8.8% compared with the theoretical mass loss of 8.737%. A strong Raman band at 853 cm^-1 is assigned to the SiO stretching vibration of the SiO3(OH) units. Two Raman bands at 914 and 953 cm^-1 are attributed to the antisymmetric vibrations. Two intense Raman bands observed at 3511 and 3550 cm^-1are assigned to the OH stretching vibration of the SiO3(OH) units. The observation of multiple OH bands supports the concept of the non-equivalence of the OH units. Vibrational spectroscopy enables a detailed assessment of the molecular structure of olmiite. |
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Frost, Ray LeslieCipriano, Ricardo Augusto ScholzLópez, AndrésXi, YunfeiGranja, AmandaGobac, Željka ŽigovečkiLima, Rosa Malena Fernandes2014-12-14T12:53:26Z2014-12-14T12:53:26Z2013FROST, R. L. et al. Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. Journal of Molecular Structure, v. 1053, p. 22-26, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0022286013007278>. Acesso em: 07 out. 2014.0022-2860http://www.repositorio.ufop.br/handle/123456789/4169https://doi.org/10.1016/j.molstruc.2013.08.038We have studied the mineral olmiite CaMn[SiO3(OH)](OH) which forms a series with its calcium analogue poldervaartite CaCa[SiO3(OH)](OH) using a range of techniques including scanning electron microscopy, thermogravimetric analysis, Raman and infrared spectroscopy. Chemical analysis shows the mineral is purê and contains only calcium and manganese in the formula. Thermogravimetric analysis proves the mineral decomposes at 502 °C with a mass loss of 8.8% compared with the theoretical mass loss of 8.737%. A strong Raman band at 853 cm^-1 is assigned to the SiO stretching vibration of the SiO3(OH) units. Two Raman bands at 914 and 953 cm^-1 are attributed to the antisymmetric vibrations. Two intense Raman bands observed at 3511 and 3550 cm^-1are assigned to the OH stretching vibration of the SiO3(OH) units. The observation of multiple OH bands supports the concept of the non-equivalence of the OH units. Vibrational spectroscopy enables a detailed assessment of the molecular structure of olmiite.OlmiitePhosphateRaman spectroscopyInfrared spectroscopyInfrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleO periódico Journal of Molecular Structure concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3487250016396.info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-82636http://www.repositorio.ufop.br/bitstream/123456789/4169/2/license.txtc2ffdd99e58acf69202dff00d361f23aMD52ORIGINALARTIGO_InfraredRamanOlmiite.pdfARTIGO_InfraredRamanOlmiite.pdfapplication/pdf975571http://www.repositorio.ufop.br/bitstream/123456789/4169/1/ARTIGO_InfraredRamanOlmiite.pdfd3d66f72b5454e1ca88961a5b7dd558dMD51123456789/41692019-07-09 09:21:32.301oai:localhost:123456789/4169Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-07-09T13:21:32Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. |
title |
Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. |
spellingShingle |
Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. Frost, Ray Leslie Olmiite Phosphate Raman spectroscopy Infrared spectroscopy |
title_short |
Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. |
title_full |
Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. |
title_fullStr |
Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. |
title_full_unstemmed |
Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. |
title_sort |
Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. |
author |
Frost, Ray Leslie |
author_facet |
Frost, Ray Leslie Cipriano, Ricardo Augusto Scholz López, Andrés Xi, Yunfei Granja, Amanda Gobac, Željka Žigovečki Lima, Rosa Malena Fernandes |
author_role |
author |
author2 |
Cipriano, Ricardo Augusto Scholz López, Andrés Xi, Yunfei Granja, Amanda Gobac, Željka Žigovečki Lima, Rosa Malena Fernandes |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Frost, Ray Leslie Cipriano, Ricardo Augusto Scholz López, Andrés Xi, Yunfei Granja, Amanda Gobac, Željka Žigovečki Lima, Rosa Malena Fernandes |
dc.subject.por.fl_str_mv |
Olmiite Phosphate Raman spectroscopy Infrared spectroscopy |
topic |
Olmiite Phosphate Raman spectroscopy Infrared spectroscopy |
description |
We have studied the mineral olmiite CaMn[SiO3(OH)](OH) which forms a series with its calcium analogue poldervaartite CaCa[SiO3(OH)](OH) using a range of techniques including scanning electron microscopy, thermogravimetric analysis, Raman and infrared spectroscopy. Chemical analysis shows the mineral is purê and contains only calcium and manganese in the formula. Thermogravimetric analysis proves the mineral decomposes at 502 °C with a mass loss of 8.8% compared with the theoretical mass loss of 8.737%. A strong Raman band at 853 cm^-1 is assigned to the SiO stretching vibration of the SiO3(OH) units. Two Raman bands at 914 and 953 cm^-1 are attributed to the antisymmetric vibrations. Two intense Raman bands observed at 3511 and 3550 cm^-1are assigned to the OH stretching vibration of the SiO3(OH) units. The observation of multiple OH bands supports the concept of the non-equivalence of the OH units. Vibrational spectroscopy enables a detailed assessment of the molecular structure of olmiite. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013 |
dc.date.accessioned.fl_str_mv |
2014-12-14T12:53:26Z |
dc.date.available.fl_str_mv |
2014-12-14T12:53:26Z |
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info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
FROST, R. L. et al. Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. Journal of Molecular Structure, v. 1053, p. 22-26, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0022286013007278>. Acesso em: 07 out. 2014. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/4169 |
dc.identifier.issn.none.fl_str_mv |
0022-2860 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1016/j.molstruc.2013.08.038 |
identifier_str_mv |
FROST, R. L. et al. Infrared and Raman spectroscopic characterization of the silicate mineral olmiite CaMn^2+[SiO3(OH)](OH) – implications for the molecular structure. Journal of Molecular Structure, v. 1053, p. 22-26, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0022286013007278>. Acesso em: 07 out. 2014. 0022-2860 |
url |
http://www.repositorio.ufop.br/handle/123456789/4169 https://doi.org/10.1016/j.molstruc.2013.08.038 |
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eng |
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