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

R. A. Nagalakshmi, J. Suresh, S. Maharani, R. Ranjith Kumar, P. L. Nilantha Lakshman*, W. T A Harrison (Editor)

*Corresponding author for this work

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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 bromo-benzene 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.

Original languageEnglish
Pages (from-to)296-298
Number of pages3
JournalActa Crystallographica Section E: Structure Reports Online
Issue number3
Early online date21 Feb 2015
Publication statusPublished - 1 Mar 2015

Bibliographical note

JS and RAN thank the management of The Madura College (Autonomous), Madurai, for their encouragement and support. RRK thanks the University Grants Commission, New Delhi, for funds through Major Research Project F. No. 42–242/2013 (SR).


  • Crystal structure
  • Cyclopentane ring
  • Envelope conformation
  • N - H⋯N hydrogen bonding
  • π-π interactions


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