2,3-Dihydro-1H-pyrrolo-[1,2-a]indole-9-carbonitrile

Abstract

The asymmetric unit of the title compound, C12H10N2, which may serve as a model for mitosenes, contains two independent mol-ecules. The conformation of the five-membered rings in both molecules is envelope, with the central CH2-CH2-CH2 C atom at the flap in each case. In the crystal, they inter-act by a combination of weak C-H⋯N and π-π inter-actions [centroid-centroid distances = 3.616 (1) and 3.499 (1) Å] and C-H⋯π contacts.

Fig. 1.

The asymmetric unit of (I) showing the atomic numbering scheme. Displacement ellipsoids are shown at the 50% probability level.

Fig. 2.

View of the hydrogen bonds of (I). C—H···N are shown as dashed red lines and C—H···π as dashed blue lines. H atoms not involved in hydrogen bonding are omitted for clarity.