Naslov
Crystal structure of glycolaldehyde solved from powder diffraction data

Autori
Prugovečki, Stjepan ; Mohaček Grošev, Vlasta ; Strukan, Neven

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts / Cetina, Mario ; Popović, Stanko ; Štefanić, Zoran ; Višnjevac, Aleksandar - Zagreb : Hrvatska akademija znanosti i umjetnosti, Hrvatsko kristalografsko društvo, 2005, 32-32

Skup
Fourteenth Croatian-Slovenian Crystallographic Meeting

Mjesto i datum
Vrsar, Hrvatska, 15.06.2005. - 17.06.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
gloikolaldehid; difrakcija na prahu; kristalna struktura; Ramanova spektroskopija
(glycolaldehyde; powder diffraction; crystal structure; Raman spectroscopy)

Sažetak
The title compound has been obtained from commercial supplier (Fluka). It has been known that glycolaldehyde can crystallize in two crystal phases alpha and beta, the evidence of which was given by vibrational spectroscopy (Kobayashi et al. 1976). However, no conformation of two hydroxyl groups attached to dioxane ring was given for each crystal phase. The powder pattern was collected on 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 X'Pert PRO diffractometer with focusing mirror and X'Celerator 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) deg. Space group search by Pawley methjod suggested space group P21/a. Structure was successfully solved by direct methods program suite EXPO.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA