Calculated Resonance Vibrational Raman Optical Activity Spectra of Naproxen and Ibuprofen.
J Phys Chem A
; 120(49): 9740-9748, 2016 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-27973807
ABSTRACT
Determining the absolute configuration of a molecule is possible by means of various chiroptical spectroscopic methods, one of them being vibrational Raman optical activity (VROA). By adopting a laser excitation wavelength in resonance with an electronic transition, the weak spectral signals can be selectively enhanced. We implement a Kohn-Sham methodology for the calculation of resonance and off-resonance VROA spectra to (S)-naproxen and (S)-ibuprofen and discuss their band patterns. The resonance enhancement of the VROA spectrum of (S)-naproxen at an incident wavelength of 514.5 nm caused by an absorption tail as well as the typical off-resonance behavior of the VROA spectrum of (S)-ibuprofen at the same incident wavelength can be well reproduced. VROA spectra are also predicted under full resonance conditions.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Teoria Quântica
/
Ibuprofeno
/
Naproxeno
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article