Crystal structure and synthesis of 3-(1-pyrrol-2-yl)-1-(thio-phen-2-yl)propanone.

The title compound, CHNOS, was obtained in an improved yield compared to previous literature methods. The mol-ecule is essentially planar with a maximum deviation of 0.085 Å from the mean plane through all non-H atoms. There is directive inter-molecular hydrogen bonding in the form of N-H⋯O hydrogen bonds with a distance of 2.889 (3) Å between the pyrrole amine and the ketone carbonyl O atom. The resulting hydrogen-bonding network defines a ribbon parallel to the axis. These ribbons form offset stacks along the axis.