Low-temperature Raman spectra of racemate DL-Alanine crystals

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Low-temperature Raman spectra of racemate DL-Alanine crystals. / Lima, J. A.; Freire, P. T.C.; Melo, F. E.A.; Mendes Filho, J.; de Sousa, G. P.; Lima, R. J.C.; Façanha Filho, P. F.; Bordallo, H. N.

In: Journal of Raman Spectroscopy, Vol. 41, No. 7, 01.07.2010, p. 808-813.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Lima, JA, Freire, PTC, Melo, FEA, Mendes Filho, J, de Sousa, GP, Lima, RJC, Façanha Filho, PF & Bordallo, HN 2010, 'Low-temperature Raman spectra of racemate DL-Alanine crystals', Journal of Raman Spectroscopy, vol. 41, no. 7, pp. 808-813. https://doi.org/10.1002/jrs.2507

APA

Lima, J. A., Freire, P. T. C., Melo, F. E. A., Mendes Filho, J., de Sousa, G. P., Lima, R. J. C., Façanha Filho, P. F., & Bordallo, H. N. (2010). Low-temperature Raman spectra of racemate DL-Alanine crystals. Journal of Raman Spectroscopy, 41(7), 808-813. https://doi.org/10.1002/jrs.2507

Vancouver

Lima JA, Freire PTC, Melo FEA, Mendes Filho J, de Sousa GP, Lima RJC et al. Low-temperature Raman spectra of racemate DL-Alanine crystals. Journal of Raman Spectroscopy. 2010 Jul 1;41(7):808-813. https://doi.org/10.1002/jrs.2507

Author

Lima, J. A. ; Freire, P. T.C. ; Melo, F. E.A. ; Mendes Filho, J. ; de Sousa, G. P. ; Lima, R. J.C. ; Façanha Filho, P. F. ; Bordallo, H. N. / Low-temperature Raman spectra of racemate DL-Alanine crystals. In: Journal of Raman Spectroscopy. 2010 ; Vol. 41, No. 7. pp. 808-813.

Bibtex

@article{982fc444eeca457a854abec1280aed90,
title = "Low-temperature Raman spectra of racemate DL-Alanine crystals",
abstract = "Raman spectra of DL-Alanine crystals were investigated in the 50-3200cm-1 spectral region for temperatures ranging from 15 to 295 K. The crystalline structure of DL-Alanine represents a rare example of an amino acid racemate crystallizing in a non-centrosymmetric space group. From this study, we have observed changes in the wavenumber of modes associated with both rocking of CO2- and skeletal vibrations. On the other hand, neither changes in the modes associated to CH or CH3 vibrations nor substantial modifications of the lattice modes of the crystal were observed. Such result indicates slight changes of the CO2 group orientation without observation of a solid-solid phase transition in the DL-Alanine crystal.",
keywords = "Amino acid, Hydrogen bond, Low temperature",
author = "Lima, {J. A.} and Freire, {P. T.C.} and Melo, {F. E.A.} and {Mendes Filho}, J. and {de Sousa}, {G. P.} and Lima, {R. J.C.} and {Fa{\c c}anha Filho}, {P. F.} and Bordallo, {H. N.}",
year = "2010",
month = jul,
day = "1",
doi = "10.1002/jrs.2507",
language = "English",
volume = "41",
pages = "808--813",
journal = "Journal of Raman Spectroscopy",
issn = "0377-0486",
publisher = "JohnWiley & Sons Ltd",
number = "7",

}

RIS

TY - JOUR

T1 - Low-temperature Raman spectra of racemate DL-Alanine crystals

AU - Lima, J. A.

AU - Freire, P. T.C.

AU - Melo, F. E.A.

AU - Mendes Filho, J.

AU - de Sousa, G. P.

AU - Lima, R. J.C.

AU - Façanha Filho, P. F.

AU - Bordallo, H. N.

PY - 2010/7/1

Y1 - 2010/7/1

N2 - Raman spectra of DL-Alanine crystals were investigated in the 50-3200cm-1 spectral region for temperatures ranging from 15 to 295 K. The crystalline structure of DL-Alanine represents a rare example of an amino acid racemate crystallizing in a non-centrosymmetric space group. From this study, we have observed changes in the wavenumber of modes associated with both rocking of CO2- and skeletal vibrations. On the other hand, neither changes in the modes associated to CH or CH3 vibrations nor substantial modifications of the lattice modes of the crystal were observed. Such result indicates slight changes of the CO2 group orientation without observation of a solid-solid phase transition in the DL-Alanine crystal.

AB - Raman spectra of DL-Alanine crystals were investigated in the 50-3200cm-1 spectral region for temperatures ranging from 15 to 295 K. The crystalline structure of DL-Alanine represents a rare example of an amino acid racemate crystallizing in a non-centrosymmetric space group. From this study, we have observed changes in the wavenumber of modes associated with both rocking of CO2- and skeletal vibrations. On the other hand, neither changes in the modes associated to CH or CH3 vibrations nor substantial modifications of the lattice modes of the crystal were observed. Such result indicates slight changes of the CO2 group orientation without observation of a solid-solid phase transition in the DL-Alanine crystal.

KW - Amino acid

KW - Hydrogen bond

KW - Low temperature

U2 - 10.1002/jrs.2507

DO - 10.1002/jrs.2507

M3 - Journal article

AN - SCOPUS:77954972508

VL - 41

SP - 808

EP - 813

JO - Journal of Raman Spectroscopy

JF - Journal of Raman Spectroscopy

SN - 0377-0486

IS - 7

ER -

ID: 199167942