Crystal structure of 2-benzylamino-4-(4-bromophenyl)-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile

Abstract

In the title compound C22H18BrN3, the cyclopentane ring adopts an envelope conformation with the central methylene C atom as the flap. The dihedral angles between the central pyridine ring and the pendant benzyl and and bromobenzene rings are 82.65 (1) and 47.23 (1)°, respectively. In the crystal, inversion dimers linked by pairs of N—H...Nn (n = nitrile) hydrogen bonds generate R22(12) loops. These dimers are linked by weak π–π interactions [centroid–centroid distance = 3.7713 (14) Å] into a layered structure.

Keywords

• crystal structure
• cyclopentane ring
• envelope conformation
• N—H...N hydrogen bonding
• π–π interactions