Structure of l'-(p-Bromophenyl)-3'-ethyl- 1',3', 4',5'-tetrahydro- 1,2-dideoxy-D-glycero- L-gluco-heptofuranoso[ 1,2-d]imidazole-2'-thione,* C16H21BrN205 S

Description

M,=433.3, orthorhombic, P2,2~2,, a= 8.466 (2), b .... 27. 136 (5), c - 7.776 (5) A, V = 1786(1)A3, Z=4, D,,,= 1.60(l),Dx= 1.61Mgm -3, Mo Ka, 2 = 0.7107 A, a = 2.42 mm-', F(000) = 888, 300 K, R =0.045 for 1 196 observed independent reflexions. The sugar ring adopts a 4T 3 conformation and the dihedral angle in the bicycle is 72-2(4) ° . Intermolecular hydrogen bonds link molecules related by a screw axis to give helical chains parallel to 1001 I.

Additional details