Original scientific paper
Structural Characterization of β-Glycolaldehyde Dimer
; Center of Excellence for Advanced Materials and Sensing Devices, Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia
Biserka Prugovečki ; Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
Stjepan Prugovečki ; Malvern Panalytical B.V., Lelyweg 1, 7602 EA Almelo, The Netherlands
APA 6th Edition
Mohaček-Grošev, V., Prugovečki, B. & Prugovečki, S. (2020). Structural Characterization of β-Glycolaldehyde Dimer. Croatica Chemica Acta, 93 (1), 15-22. https://doi.org/10.5562/cca3606
MLA 8th Edition
Mohaček-Grošev, Vlasta, et al. "Structural Characterization of β-Glycolaldehyde Dimer." Croatica Chemica Acta, vol. 93, no. 1, 2020, pp. 15-22. https://doi.org/10.5562/cca3606. Accessed 1 Feb. 2023.
Chicago 17th Edition
Mohaček-Grošev, Vlasta, Biserka Prugovečki and Stjepan Prugovečki. "Structural Characterization of β-Glycolaldehyde Dimer." Croatica Chemica Acta 93, no. 1 (2020): 15-22. https://doi.org/10.5562/cca3606
Mohaček-Grošev, V., Prugovečki, B., and Prugovečki, S. (2020). 'Structural Characterization of β-Glycolaldehyde Dimer', Croatica Chemica Acta, 93(1), pp. 15-22. https://doi.org/10.5562/cca3606
Mohaček-Grošev V, Prugovečki B, Prugovečki S. Structural Characterization of β-Glycolaldehyde Dimer. Croatica Chemica Acta [Internet]. 2020 [cited 2023 February 01];93(1):15-22. https://doi.org/10.5562/cca3606
V. Mohaček-Grošev, B. Prugovečki and S. Prugovečki, "Structural Characterization of β-Glycolaldehyde Dimer", Croatica Chemica Acta, vol.93, no. 1, pp. 15-22, 2020. [Online]. https://doi.org/10.5562/cca3606
Structural characterization of the β-polymorph of glycolaldehyde dimer by powder X-ray diffraction, Raman and infrared spectroscopies is described. The previously described α-polymorph and the β-polymorph both crystallize in the monoclinic crystal system, space group P21/c, but with different cell parameters. There are no significant differences in the glycolaldehyde dimer molecular structure, the molecules in both polymorphs are trans-isomers with the hydroxyl groups in axial positions. The two polymorphs have a different arrangement of the glycolaldehyde dimer molecules. In the previously reported α-polymorph the molecules are arranged in hydrogen bonded layers parallel to (100) while in the β-polymorph the hydrogen bonded molecules are arranged in a three-dimensional network. Theoretically calculated Gibbs free energy as well as differential scanning calorimetry indicate β-polymorph to be the stable crystal phase of glycolaldehyde.
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