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Vibrational analysis of glycolaldehyde and hydroxyacetone (CROSBI ID 492219)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Mohaček Grošev, Vlasta Vibrational analysis of glycolaldehyde and hydroxyacetone // Book of Abstracts / Szalontai, Balasz ; Kota, Zoltan (ur.). Segedin: JATE Press, 2003. str. 124-124-x

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

Povezanost rada

Fizika