A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2.
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/3879 https://doi.org/10.1016/j.saa.2014.06.004 |
Resumo: | We have studied the mineral takedaite Ca3(BO3)2, a borate mineral of calcium using SEM with EDX and vibrational spectroscopy. Chemical analysis shows a homogeneous phase, composed of Ca. Boron was not detected. A very intense Raman band at 1087 cm^-1 is assigned to the BO stretching vibration of BO3 units. Additional Raman bands may be due to isotopic splitting. In the infrared spectrum, bands at 1218 cm^-1 and at 1163, 1262 and 1295 cm^-1 are assigned to the trigonal borate stretching modes. Raman bands at 712 and 715 cm^-1 are assigned to the in-plane bending modes of the BO3 units. Vibrational spectroscopy enables aspects of the molecular structure of takedaite to be assessed. |
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Frost, Ray LeslieLópez, AndrésXi, YunfeiGraça, Leonardo MartinsCipriano, Ricardo Augusto Scholz2014-11-14T20:08:36Z2014-11-14T20:08:36Z2014FROST, R. L. et al. A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, v. 132, p. 833-837, 2014. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142514008920>. Acesso em: 30 set. 2014.1386-1425http://www.repositorio.ufop.br/handle/123456789/3879https://doi.org/10.1016/j.saa.2014.06.004We have studied the mineral takedaite Ca3(BO3)2, a borate mineral of calcium using SEM with EDX and vibrational spectroscopy. Chemical analysis shows a homogeneous phase, composed of Ca. Boron was not detected. A very intense Raman band at 1087 cm^-1 is assigned to the BO stretching vibration of BO3 units. Additional Raman bands may be due to isotopic splitting. In the infrared spectrum, bands at 1218 cm^-1 and at 1163, 1262 and 1295 cm^-1 are assigned to the trigonal borate stretching modes. Raman bands at 712 and 715 cm^-1 are assigned to the in-plane bending modes of the BO3 units. Vibrational spectroscopy enables aspects of the molecular structure of takedaite to be assessed.TakedaiteBorateCalciumRaman spectroscopyInfrared spectroscopyA vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleO periódico Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3490880778248.info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://www.repositorio.ufop.br/bitstream/123456789/3879/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52ORIGINALARTIGO_VibrationalSpectroscopicBorate.pdfARTIGO_VibrationalSpectroscopicBorate.pdfapplication/pdf960539http://www.repositorio.ufop.br/bitstream/123456789/3879/1/ARTIGO_VibrationalSpectroscopicBorate.pdf6b3d520d1405a953c616c89310a95096MD51123456789/38792019-07-09 09:49:06.844oai:localhost: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Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-07-09T13:49:06Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. |
title |
A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. |
spellingShingle |
A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. Frost, Ray Leslie Takedaite Borate Calcium Raman spectroscopy Infrared spectroscopy |
title_short |
A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. |
title_full |
A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. |
title_fullStr |
A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. |
title_full_unstemmed |
A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. |
title_sort |
A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. |
author |
Frost, Ray Leslie |
author_facet |
Frost, Ray Leslie López, Andrés Xi, Yunfei Graça, Leonardo Martins Cipriano, Ricardo Augusto Scholz |
author_role |
author |
author2 |
López, Andrés Xi, Yunfei Graça, Leonardo Martins Cipriano, Ricardo Augusto Scholz |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Frost, Ray Leslie López, Andrés Xi, Yunfei Graça, Leonardo Martins Cipriano, Ricardo Augusto Scholz |
dc.subject.por.fl_str_mv |
Takedaite Borate Calcium Raman spectroscopy Infrared spectroscopy |
topic |
Takedaite Borate Calcium Raman spectroscopy Infrared spectroscopy |
description |
We have studied the mineral takedaite Ca3(BO3)2, a borate mineral of calcium using SEM with EDX and vibrational spectroscopy. Chemical analysis shows a homogeneous phase, composed of Ca. Boron was not detected. A very intense Raman band at 1087 cm^-1 is assigned to the BO stretching vibration of BO3 units. Additional Raman bands may be due to isotopic splitting. In the infrared spectrum, bands at 1218 cm^-1 and at 1163, 1262 and 1295 cm^-1 are assigned to the trigonal borate stretching modes. Raman bands at 712 and 715 cm^-1 are assigned to the in-plane bending modes of the BO3 units. Vibrational spectroscopy enables aspects of the molecular structure of takedaite to be assessed. |
publishDate |
2014 |
dc.date.accessioned.fl_str_mv |
2014-11-14T20:08:36Z |
dc.date.available.fl_str_mv |
2014-11-14T20:08:36Z |
dc.date.issued.fl_str_mv |
2014 |
dc.type.status.fl_str_mv |
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. A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, v. 132, p. 833-837, 2014. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142514008920>. Acesso em: 30 set. 2014. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/3879 |
dc.identifier.issn.none.fl_str_mv |
1386-1425 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1016/j.saa.2014.06.004 |
identifier_str_mv |
FROST, R. L. et al. A vibrational spectroscopic study of the borate mineral takedaite Ca3(BO3)2. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, v. 132, p. 833-837, 2014. Disponível em: <http://www.sciencedirect.com/science/article/pii/S1386142514008920>. Acesso em: 30 set. 2014. 1386-1425 |
url |
http://www.repositorio.ufop.br/handle/123456789/3879 https://doi.org/10.1016/j.saa.2014.06.004 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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openAccess |
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