Crystal structure of glycolaldehyde solved from powder diffraction data (CROSBI ID 512126)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | domaća recenzija
Podaci o odgovornosti
Prugovečki, Stjepan ; Mohaček-Grošev, Vlasta ; Strukan, N ;
engleski
Crystal structure of glycolaldehyde solved from powder diffraction data
The title compound has been obtained from commercial supplier (Fluka). It has been known that glycolaldehyde can crystallize in two crystal phases a and b, the evidence of which was given by vibrational spectroscopy. However, no conformation of two hydroxyl groups attached to dioxane ring was given for each crystal phase. The powder pattern was collected on a laboratory diffractometer with reflection geometry, but showed extreme preferred orientation, so that capillary transmission was only choice. Sample was filled into a 0.5 mm capillary and pattern was collected on the XPert PRO diffractometer with focusing mirror and XCelerator detector. The pattern was successfully indexed with high figure of merit. The unit cell was monoclinic a=5.621(2) A, b=8.402(2) A, c=5.948(2) A, beta=114.92(2). Space group search by Pawwley method suggested space group P2/a Structure was successfully solved by direct methods program suite EXPO.
kristalna struktura; difrakcija na praškastom uzorku; glikolaldehid
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
32-x.
2005.
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Podaci o matičnoj publikaciji
Book of abstracts
Zagreb:
Podaci o skupu
FOURTEENTH CROATIAN-SLOVENIAN CRYSTALlOGRAPHIC MEETING
predavanje
15.06.2005-17.06.2005
Vrsar, Hrvatska