A Raman and infrared spectroscopic study of the phosphate mineral laueite.
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/6731 https://doi.org/10.1016/j.vibspec.2015.12.001 |
Resumo: | A laueite mineral sample from Lavra Da Ilha, Minas Gerais, Brazil has been studied by vibrational spectroscopy and scanning electron microscopy with EDX. Chemical formula calculated on the basis of semi-quantitative chemical analysis can be expressed as (Mn2+0.85,Fe2+0.10Mg0.05)P1.00(Fe3+1.90,Al0.10)P2.00(PO4)2(OH)2_8H2O. The laueite structure is based on an infinite chains of vertex-linked oxygen octahedra, with Fe3+ occupying the octahedral centers, the chain oriented parallel to the c-axis and linked by PO4 groups. Consequentially not all phosphate units are identical. Two intense Raman bands observed at 980 and 1045 cm_1 are assigned to the n1 PO43_ symmetric stretching mode. Intense Raman bands are observed at 525 and 551 cm_1 with a shoulder at 542 cm_1 are assigned to the n4 out of plane bending modes of the PO43_. The observation of multiple bands supports the concept of non-equivalent phosphate units in the structure. Intense Raman bands are observed at 3379 and 3478 cm_1 and are attributed to the OH stretching vibrations of the hydroxyl units. Intense broad infrared bands are observed. Vibrational spectroscopy enables subtle details of the molecular structure of laueite to be determined. |
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Frost, Ray LeslieCipriano, Ricardo Augusto ScholzLópez, Andrés2016-08-01T19:13:18Z2016-08-01T19:13:18Z2016FROST, R. L.; CIPRIANO, R. A. S.; LOPÉZ, A. A Raman and infrared spectroscopic study of the phosphate mineral laueite. Vibrational Spectroscopy, v. 82, p. 31-36, 2016. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0924203115300357>. Acesso em: 11 jul. 2016.0924-2031http://www.repositorio.ufop.br/handle/123456789/6731https://doi.org/10.1016/j.vibspec.2015.12.001A laueite mineral sample from Lavra Da Ilha, Minas Gerais, Brazil has been studied by vibrational spectroscopy and scanning electron microscopy with EDX. Chemical formula calculated on the basis of semi-quantitative chemical analysis can be expressed as (Mn2+0.85,Fe2+0.10Mg0.05)P1.00(Fe3+1.90,Al0.10)P2.00(PO4)2(OH)2_8H2O. The laueite structure is based on an infinite chains of vertex-linked oxygen octahedra, with Fe3+ occupying the octahedral centers, the chain oriented parallel to the c-axis and linked by PO4 groups. Consequentially not all phosphate units are identical. Two intense Raman bands observed at 980 and 1045 cm_1 are assigned to the n1 PO43_ symmetric stretching mode. Intense Raman bands are observed at 525 and 551 cm_1 with a shoulder at 542 cm_1 are assigned to the n4 out of plane bending modes of the PO43_. The observation of multiple bands supports the concept of non-equivalent phosphate units in the structure. Intense Raman bands are observed at 3379 and 3478 cm_1 and are attributed to the OH stretching vibrations of the hydroxyl units. Intense broad infrared bands are observed. Vibrational spectroscopy enables subtle details of the molecular structure of laueite to be determined.O periódico Vibrational Spectroscopy concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3907040756589.info:eu-repo/semantics/openAccessLaueitePhosphateHydroxylRaman spectroscopyInfrared spectroscopyA Raman and infrared spectroscopic study of the phosphate mineral laueite.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/6731/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_RamanInfraredSpectrocopic.pdfARTIGO_RamanInfraredSpectrocopic.pdfapplication/pdf1240250http://www.repositorio.ufop.br/bitstream/123456789/6731/1/ARTIGO_RamanInfraredSpectrocopic.pdfdc8b1b76936934d8462c798cd2a5ab34MD51123456789/67312019-09-24 13:32:44.822oai:localhost:123456789/6731RGVjbGFyYcOnw6NvIGRlIGRpc3RyaWJ1acOnw6NvIG7Do28tZXhjbHVzaXZhCgpPIHJlZmVyaWRvIGF1dG9yOgoKYSlEZWNsYXJhIHF1ZSBvIGRvY3VtZW50byBlbnRyZWd1ZSDDqSBzZXUgdHJhYmFsaG8gb3JpZ2luYWwgZSBxdWUgZGV0w6ltIG8gZGlyZWl0byBkZSBjb25jZWRlciBvcyBkaXJlaXRvcyBjb250aWRvcyBuZXN0YSBsaWNlbsOnYS4gRGVjbGFyYSB0YW1iw6ltIHF1ZSBhIGVudHJlZ2EgZG8gZG9jdW1lbnRvIG7Do28gaW5mcmluZ2UsIHRhbnRvIHF1YW50byBsaGUgw6kgcG9zc8OtdmVsIHNhYmVyLCBvcyBkaXJlaXRvcyBkZSBxdWFscXVlciBwZXNzb2Egb3UgZW50aWRhZGUuCgpiKVNlIG8gZG9jdW1lbnRvIGVudHJlZ3VlIGNvbnTDqW0gbWF0ZXJpYWwgZG8gcXVhbCBuw6NvIGRldMOpbSBvcyBkaXJlaXRvcyBkZSBhdXRvciwgZGVjbGFyYSBxdWUgb2J0ZXZlIGF1dG9yaXphw6fDo28gZG8gZGV0ZW50b3IgZG9zIGRpcmVpdG9zIGRlIGF1dG9yIHBhcmEgY29uY2VkZXIgw6AgVW5pdmVyc2lkYWRlIEZlZGVyYWwgZGUgT3VybyBQcmV0by9VRk9QIG9zIGRpcmVpdG9zIHJlcXVlcmlkb3MgcG9yIGVzdGEgbGljZW7Dp2EgZSBxdWUgZXNzZSBtYXRlcmlhbCwgY3Vqb3MgZGlyZWl0b3Mgc8OjbyBkZSB0ZXJjZWlyb3MsIGVzdMOhIGNsYXJhbWVudGUgaWRlbnRpZmljYWRvIGUgcmVjb25oZWNpZG8gbm8gdGV4dG8gb3UgY29udGXDumRvcyBkbyBkb2N1bWVudG8gZW50cmVndWUuCgpjKVNlIG8gZG9jdW1lbnRvIGVudHJlZ3VlIMOpIGJhc2VhZG8gZW0gdHJhYmFsaG8gZmluYW5jaWFkbyBvdSBhcG9pYWRvIHBvciBvdXRyYSBpbnN0aXR1acOnw6NvIHF1ZSBuw6NvIGEgVUZPUCwgZGVjbGFyYSBxdWUgY3VtcHJpdSBxdWFpc3F1ZXIgb2JyaWdhw6fDtWVzIGV4aWdpZGFzIHBlbG8gY29udHJhdG8gb3UgYWNvcmRvLgoKRepositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-09-24T17:32:44Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
A Raman and infrared spectroscopic study of the phosphate mineral laueite. |
title |
A Raman and infrared spectroscopic study of the phosphate mineral laueite. |
spellingShingle |
A Raman and infrared spectroscopic study of the phosphate mineral laueite. Frost, Ray Leslie Laueite Phosphate Hydroxyl Raman spectroscopy Infrared spectroscopy |
title_short |
A Raman and infrared spectroscopic study of the phosphate mineral laueite. |
title_full |
A Raman and infrared spectroscopic study of the phosphate mineral laueite. |
title_fullStr |
A Raman and infrared spectroscopic study of the phosphate mineral laueite. |
title_full_unstemmed |
A Raman and infrared spectroscopic study of the phosphate mineral laueite. |
title_sort |
A Raman and infrared spectroscopic study of the phosphate mineral laueite. |
author |
Frost, Ray Leslie |
author_facet |
Frost, Ray Leslie Cipriano, Ricardo Augusto Scholz López, Andrés |
author_role |
author |
author2 |
Cipriano, Ricardo Augusto Scholz López, Andrés |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Frost, Ray Leslie Cipriano, Ricardo Augusto Scholz López, Andrés |
dc.subject.por.fl_str_mv |
Laueite Phosphate Hydroxyl Raman spectroscopy Infrared spectroscopy |
topic |
Laueite Phosphate Hydroxyl Raman spectroscopy Infrared spectroscopy |
description |
A laueite mineral sample from Lavra Da Ilha, Minas Gerais, Brazil has been studied by vibrational spectroscopy and scanning electron microscopy with EDX. Chemical formula calculated on the basis of semi-quantitative chemical analysis can be expressed as (Mn2+0.85,Fe2+0.10Mg0.05)P1.00(Fe3+1.90,Al0.10)P2.00(PO4)2(OH)2_8H2O. The laueite structure is based on an infinite chains of vertex-linked oxygen octahedra, with Fe3+ occupying the octahedral centers, the chain oriented parallel to the c-axis and linked by PO4 groups. Consequentially not all phosphate units are identical. Two intense Raman bands observed at 980 and 1045 cm_1 are assigned to the n1 PO43_ symmetric stretching mode. Intense Raman bands are observed at 525 and 551 cm_1 with a shoulder at 542 cm_1 are assigned to the n4 out of plane bending modes of the PO43_. The observation of multiple bands supports the concept of non-equivalent phosphate units in the structure. Intense Raman bands are observed at 3379 and 3478 cm_1 and are attributed to the OH stretching vibrations of the hydroxyl units. Intense broad infrared bands are observed. Vibrational spectroscopy enables subtle details of the molecular structure of laueite to be determined. |
publishDate |
2016 |
dc.date.accessioned.fl_str_mv |
2016-08-01T19:13:18Z |
dc.date.available.fl_str_mv |
2016-08-01T19:13:18Z |
dc.date.issued.fl_str_mv |
2016 |
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.; CIPRIANO, R. A. S.; LOPÉZ, A. A Raman and infrared spectroscopic study of the phosphate mineral laueite. Vibrational Spectroscopy, v. 82, p. 31-36, 2016. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0924203115300357>. Acesso em: 11 jul. 2016. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/6731 |
dc.identifier.issn.none.fl_str_mv |
0924-2031 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1016/j.vibspec.2015.12.001 |
identifier_str_mv |
FROST, R. L.; CIPRIANO, R. A. S.; LOPÉZ, A. A Raman and infrared spectroscopic study of the phosphate mineral laueite. Vibrational Spectroscopy, v. 82, p. 31-36, 2016. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0924203115300357>. Acesso em: 11 jul. 2016. 0924-2031 |
url |
http://www.repositorio.ufop.br/handle/123456789/6731 https://doi.org/10.1016/j.vibspec.2015.12.001 |
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eng |
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