Figure 1
(a) ORTEPIII (Burnett & Johnson, 1996 ) drawing and atom-labelling of (I) with 30% probability displacement ellipsoids, consisting of an asymmetric unit with two crystallographically independent molecules A and B. The figure describes their relative orientation and intramolecular hydrogen bonds. (b) ORTEPIII (Burnett & Johnson, 1996 ) drawing and atom-labelling scheme of (II) with 30% probability displacement ellipsoids. Intramolecular hydrogen bonds are shown. (c) Molecular structure and intramolecular hydrogen bonds of (III) with atom-labelling scheme according to Karle et al. (1994 ). |