High temperature Raman spectra of L-leucine crystals

Detalhes bibliográficos
Autor(a) principal: Façanha Filho,P. F.
Data de Publicação: 2008
Outros Autores: Freire,P. T. C., Lima,K. C. V., Mendes Filho,J., Melo,F. E. A., Pizani,P. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332008000100024
Resumo: Single crystal samples of L-leucine, C6H13NO2, a fundamental aliphatic amino acid of the human body, have been studied by Raman spectroscopy at temperatures from 300 to 430 K over the spectral range from 50 to 3100 cm-1. A tentative assignment of all bands is given. For high temperatures, several modifications on the Raman spectra were observed at about 353 K, giving evidence that the L-leucine crystal undergoes a structural phase transition. An interpretation for this phase transition in terms of group theory analysis is given.
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spelling High temperature Raman spectra of L-leucine crystalsLeucineAmino acidRaman spectroscopySingle crystal samples of L-leucine, C6H13NO2, a fundamental aliphatic amino acid of the human body, have been studied by Raman spectroscopy at temperatures from 300 to 430 K over the spectral range from 50 to 3100 cm-1. A tentative assignment of all bands is given. For high temperatures, several modifications on the Raman spectra were observed at about 353 K, giving evidence that the L-leucine crystal undergoes a structural phase transition. An interpretation for this phase transition in terms of group theory analysis is given.Sociedade Brasileira de Física2008-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332008000100024Brazilian Journal of Physics v.38 n.1 2008reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332008000100024info:eu-repo/semantics/openAccessFaçanha Filho,P. F.Freire,P. T. C.Lima,K. C. V.Mendes Filho,J.Melo,F. E. A.Pizani,P. S.eng2008-03-28T00:00:00Zoai:scielo:S0103-97332008000100024Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2008-03-28T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv High temperature Raman spectra of L-leucine crystals
title High temperature Raman spectra of L-leucine crystals
spellingShingle High temperature Raman spectra of L-leucine crystals
Façanha Filho,P. F.
Leucine
Amino acid
Raman spectroscopy
title_short High temperature Raman spectra of L-leucine crystals
title_full High temperature Raman spectra of L-leucine crystals
title_fullStr High temperature Raman spectra of L-leucine crystals
title_full_unstemmed High temperature Raman spectra of L-leucine crystals
title_sort High temperature Raman spectra of L-leucine crystals
author Façanha Filho,P. F.
author_facet Façanha Filho,P. F.
Freire,P. T. C.
Lima,K. C. V.
Mendes Filho,J.
Melo,F. E. A.
Pizani,P. S.
author_role author
author2 Freire,P. T. C.
Lima,K. C. V.
Mendes Filho,J.
Melo,F. E. A.
Pizani,P. S.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Façanha Filho,P. F.
Freire,P. T. C.
Lima,K. C. V.
Mendes Filho,J.
Melo,F. E. A.
Pizani,P. S.
dc.subject.por.fl_str_mv Leucine
Amino acid
Raman spectroscopy
topic Leucine
Amino acid
Raman spectroscopy
description Single crystal samples of L-leucine, C6H13NO2, a fundamental aliphatic amino acid of the human body, have been studied by Raman spectroscopy at temperatures from 300 to 430 K over the spectral range from 50 to 3100 cm-1. A tentative assignment of all bands is given. For high temperatures, several modifications on the Raman spectra were observed at about 353 K, giving evidence that the L-leucine crystal undergoes a structural phase transition. An interpretation for this phase transition in terms of group theory analysis is given.
publishDate 2008
dc.date.none.fl_str_mv 2008-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332008000100024
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332008000100024
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332008000100024
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.38 n.1 2008
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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