Infrared and Raman spectra, conformational stability, ab initio calculations of structure, and vibrational assignment of α and β glucose
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α and β Glucose anomers were studied by using density functional/ab initio calculations in vacuum and in the presence of a solvent (water). Calculations in a continuum medium, using the Onsager reaction field model, suggest that α glucose is energetically most stable than β anomer in aqueous solution according with the experimentally reported. We also calculated the vibrational frequencies and optimal geometries for both glucose anomers, showing differences between them, depending on the medium around the molecule. The vibrational frequencies calculated are compared with experimental results obtaining very good agreement. © 2004 Elsevier B.V. All rights reserved.
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Ab initio; Glucose; Osanger model; Theoretical spectra alpha glucose; beta glucose; glucose derivative; solvent; unclassified drug; ab initio calculation; article; carbohydrate analysis; conformational transition; density functional theory; energy; infrared spectroscopy; molecular stability; Raman spectrometry; theoretical model; vibration
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