Vibrational analysis of glycolaldehyde and hydroxyacetone (CROSBI ID 492219)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Mohaček Grošev, Vlasta
engleski
Vibrational analysis of glycolaldehyde and hydroxyacetone
Kinetics of smallest sugar molecules such as glyceraldehyde and dihydroxyacetone (both C3H6O3), which are playing important role in the process of glycolysis, is still a puzzle. Matters are complicated by the very nature of the compounds that contain both carbonyl and hydroxyl groups and appear as pure monomer species only in the gaseous state. In the crystal two molecules form a derivative of 1, 4-dioxane (six membered ring with two oxygens). In solutions, both monomer and various open and closed ring dimer structures are being transformed one into another, while the number of OH groups varies according to the degree of hydration. Glycolaldehyde CH2OHCHO and hydroxyacetone CH2OHCOCH3 were chosen as even smaller building blocks for sugar vibrational analysis, which is currently under way. The observed infrared and Raman bands of glycolaldehyde and acetol (90 % wt of hydroxyacetone in H2O) were assigned and a semiempirical valence force field constructed on the basis of previous work of Schachtschneider and Michelsen. The aim is to identify a reliable set of bands attributable to each compound species, which could in future serve for concentration determination of that compound and consequently for the determination of kinetic constants.
sugar; Raman; infrared; normal coordinate analysis
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Podaci o prilogu
124-124-x.
2003.
objavljeno
Podaci o matičnoj publikaciji
Book of Abstracts
Szalontai, Balasz ; Kota, Zoltan
Segedin: JATE Press
Podaci o skupu
10th European Conference on Spectroscopy of Biological Molecules
poster
30.08.2003-04.09.2003
Szeged, Mađarska