%0 Journal Article %1 WOS:000287111300011 %A Saraiva, G D %A Jr., J A Lima %A de Sousa, F F %A Freire, P T C %A Filho, J Mendes %A Filho, A G Souza %C PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS %D 2011 %I ELSEVIER SCIENCE BV %J VIBRATIONAL SPECTROSCOPY %K L-Ascorbic Phase Temperature; acid; spectroscopy; transition} {Raman %N 1 %P 101-106 %R 10.1016/j.vibspec.2010.09.006 %T Temperature dependent Raman scattering study of L-ascorbic acid %V 55 %X Temperature dependent Raman study of L-ascorbic acid has been performed from 15 to 418K. Changes in the wavenumber vs. temperature plots for some internal modes were interpreted as conformational molecular change and the discontinuity in the wavenumber vs. temperature plots along with the appearance of a new vibrational mode in the temperature range 200-270 K suggests that L-ascorbic acid undergoes a structural phase transition. For temperatures higher than 300K, no relevant modification was observed on the Raman spectra thus indicating a stable structure at high temperatures. Additionally, a correlation between OH stretching wavenumber and the behavior of hydrogen bond is also made. (C) 2010 Elsevier B.V. All rights reserved.

@article{WOS:000287111300011, abstract = {Temperature dependent Raman study of L-ascorbic acid has been performed from 15 to 418K. Changes in the wavenumber vs. temperature plots for some internal modes were interpreted as conformational molecular change and the discontinuity in the wavenumber vs. temperature plots along with the appearance of a new vibrational mode in the temperature range 200-270 K suggests that L-ascorbic acid undergoes a structural phase transition. For temperatures higher than 300K, no relevant modification was observed on the Raman spectra thus indicating a stable structure at high temperatures. Additionally, a correlation between OH stretching wavenumber and the behavior of hydrogen bond is also made. (C) 2010 Elsevier B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, author = {Saraiva, G D and Jr., J A Lima and de Sousa, F F and Freire, P T C and Filho, J Mendes and Filho, A G Souza}, biburl = {https://www.bibsonomy.org/bibtex/2d7ec5ef6d892fe65616bd815f8f45fdb/ppgfis_ufc_br}, doi = {10.1016/j.vibspec.2010.09.006}, interhash = {d64bc7a16ad7b8e3c0a67fc8485d6782}, intrahash = {d7ec5ef6d892fe65616bd815f8f45fdb}, issn = {0924-2031}, journal = {VIBRATIONAL SPECTROSCOPY}, keywords = {L-Ascorbic Phase Temperature; acid; spectroscopy; transition} {Raman}, number = 1, pages = {101-106}, publisher = {ELSEVIER SCIENCE BV}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Temperature dependent Raman scattering study of L-ascorbic acid}, tppubtype = {article}, volume = 55, year = 2011 }