Figure 3
(a) The [100] hydrogen-bonded chains in the structure of (I) (orthorhombic polymorph) and (b) their further aggregation into layers parallel to (001). O-H...O contacts are shown as red dashed lines, C-H...O as green dotted lines, and [pi]-stacking contacts as blue dashed lines.  [article HTML]

© International Union of Crystallography 2014