Crystal structure of beta-D-psicopyranose.
Here, we report the crystal structure of D-psicose, C(6)H(12)O(6), one of the rare sugars. The compound crystallizes as the beta-anomer with rarely observed in pyranose carbohydrate structures trans-gauche orientation of the hydroxymethyl group relative to the pyranosyl ring. The crystal system is orthorhombic, space group P2(1)2(1)2(1), Z=4, with cell dimensions a=7.727(2), b=8.672(2), c=11.123(3)A, V=745.3(3)A(3). The pyranosyl ring adopts chair (2)C(5) conformation. The crystal structure at 100(2)K is stabilized by three-dimensional network of O-H...O and C-H...O intermolecular hydrogen bonds.
Kwiecień
Anna
A
Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław, Poland.
Slepokura
Katarzyna
K
Lis
Tadeusz
T
D002236:Carbohydrate Conformation; D018360:Crystallography, X-Ray / Q000379:methods; D005632:Fructose / Q000737:chemistry*; D006860:Hydrogen Bonding; D008956:Models, Chemical; D008958:Models, Molecular; D015233:Models, Statistical; D008968:Molecular Conformation; D015394:Molecular Structure; D011714:Pyrans / Q000737:chemistry; D013696:Temperature; D014961:X-Ray Diffraction
D011714:Pyrans; C003243:psicose; D005632:Fructose