Vibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from Brazil

Detalhes bibliográficos
Autor(a) principal: Oliveira, Luiz F. C. de
Data de Publicação: 2002
Outros Autores: Edwards, Howell G. M., Velozo, Eudes da Silva, Nesbitt, M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7530
Resumo: Texto completo: acesso restrito. p. 243–249
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spelling Oliveira, Luiz F. C. deEdwards, Howell G. M.Velozo, Eudes da SilvaNesbitt, M.Oliveira, Luiz F. C. deEdwards, Howell G. M.Velozo, Eudes da SilvaNesbitt, M.2012-12-14T12:41:43Z2002-04-260924-2031http://www.repositorio.ufba.br/ri/handle/ri/7530v. 28, n. 2Texto completo: acesso restrito. p. 243–249In this work, the vibrational spectra (FT-Raman and infrared spectra) of brazilin, the major component of brazilwood Caesalpinia echinata (from Bahia, Brazil), and brazilein, the oxidised pigment, are investigated. The FT-Raman spectra of the compounds show different patterns in the carbonyl stretching region, where brazilein presents a Raman feature at 1697 cm−1 that is tentatively assigned to a coupled vibrational mode described by CO and aromatic CC stretching. Infrared measurements are used to support this assignment. The spectral region between 1700 and 1500 cm−1 is also proposed as a fingerprint for brazilin and brazilein. Comparisons with some quinones and polyalcohols as parent molecules and other deep red resin pigments such as “dragon’s blood” are undertaken to assist the vibrational assignment. As a test of the spectroscopic protocol for the identification of these pigments in natural brazilwoods, an 80-year-old archival specimen of Caesalpinia echinata was analysed non-destructively and the feature of brazilein shown from the Raman spectrum.Submitted by Suelen Reis (suelen_suzane@hotmail.com) on 2012-12-14T12:41:43Z No. of bitstreams: 1 1-s2.0-S0924203101001382-main.pdf: 121716 bytes, checksum: 64beee64f86f162aa09f5a2f6f057fde (MD5)Made available in DSpace on 2012-12-14T12:41:43Z (GMT). No. of bitstreams: 1 1-s2.0-S0924203101001382-main.pdf: 121716 bytes, checksum: 64beee64f86f162aa09f5a2f6f057fde (MD5) Previous issue date: 2002-04-26http://dx.doi.org/10.1016/S0924-2031(01)00138-2reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBABrazilinBrazileinBrazilwoodFT-Raman spectroscopyVibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from BrazilVibrational Spectroscopyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessLICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/7530/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52ORIGINAL1-s2.0-S0924203101001382-main.pdf1-s2.0-S0924203101001382-main.pdfapplication/pdf121716https://repositorio.ufba.br/bitstream/ri/7530/1/1-s2.0-S0924203101001382-main.pdf64beee64f86f162aa09f5a2f6f057fdeMD51TEXT1-s2.0-S0924203101001382-main.pdf.txt1-s2.0-S0924203101001382-main.pdf.txtExtracted texttext/plain21487https://repositorio.ufba.br/bitstream/ri/7530/3/1-s2.0-S0924203101001382-main.pdf.txtee1769b5e81a3830946ef718c9d01d99MD53ri/75302022-07-05 14:03:23.795oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:23Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Vibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from Brazil
dc.title.alternative.pt_BR.fl_str_mv Vibrational Spectroscopy
title Vibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from Brazil
spellingShingle Vibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from Brazil
Oliveira, Luiz F. C. de
Brazilin
Brazilein
Brazilwood
FT-Raman spectroscopy
title_short Vibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from Brazil
title_full Vibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from Brazil
title_fullStr Vibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from Brazil
title_full_unstemmed Vibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from Brazil
title_sort Vibrational spectroscopic study of brazilin and brazilein, the main constituents of brazilwood from Brazil
author Oliveira, Luiz F. C. de
author_facet Oliveira, Luiz F. C. de
Edwards, Howell G. M.
Velozo, Eudes da Silva
Nesbitt, M.
author_role author
author2 Edwards, Howell G. M.
Velozo, Eudes da Silva
Nesbitt, M.
author2_role author
author
author
dc.contributor.author.fl_str_mv Oliveira, Luiz F. C. de
Edwards, Howell G. M.
Velozo, Eudes da Silva
Nesbitt, M.
Oliveira, Luiz F. C. de
Edwards, Howell G. M.
Velozo, Eudes da Silva
Nesbitt, M.
dc.subject.por.fl_str_mv Brazilin
Brazilein
Brazilwood
FT-Raman spectroscopy
topic Brazilin
Brazilein
Brazilwood
FT-Raman spectroscopy
description Texto completo: acesso restrito. p. 243–249
publishDate 2002
dc.date.issued.fl_str_mv 2002-04-26
dc.date.accessioned.fl_str_mv 2012-12-14T12:41:43Z
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.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/7530
dc.identifier.issn.none.fl_str_mv 0924-2031
dc.identifier.number.pt_BR.fl_str_mv v. 28, n. 2
identifier_str_mv 0924-2031
v. 28, n. 2
url http://www.repositorio.ufba.br/ri/handle/ri/7530
dc.language.iso.fl_str_mv eng
language eng
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dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/S0924-2031(01)00138-2
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