Received 22 November 2012
aDepartment of Physics, Faculty of Science, An Najah National University, Nabtus West Bank, Palestine,bDepartment of Studies in Physics, Manasagangotri, University of Mysore, Mysore 570 006, India, and cDepartment of Studies in Chemistry, Manasagangotri, University of Mysore, Mysore 570 006, India
Correspondence e-mail: firstname.lastname@example.org
In the title orthorhombic polymorph (space group Iba2), C17H13N, the dihedral angle between the benzene rings is 55.99 (10)° and the azepine ring adopts a boat conformation. In the crystal, molecules are linked by C-H contacts. The previously-reported polymorph [Yousuf et al. (2012). Acta Cryst. E68, o1101] crystallizes in the monoclinic system (space group P21/c) with two molecules in the asymmetric unit.
Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB6998 ).
SMK thanks UGC-BRS and University of Mysore for the award of a fellowship. MPS gratefully acknowledges financial support (grant No. 37-456/2009[SR]) from the University Grants Commission, New Delhi, India.
Macrae, C. F., Edgington, P. R., McCabe, P., Pidcock, E., Shields, G. P., Taylor, R., Towler, M. & van de Streek, J. (2006). J. Appl. Cryst. 39, 453-457.
Oxford Diffraction (2009). CrysAlis PRO. Oxford Diffraction Ltd, Yarnton, Oxfordshire, England.
Sadashiva, M. P., Mallesha, H., KarunakaraMurthy, K. & Rangappa, K. S. (2005). Bioorg. Med. Chem. Lett. 15, 1811-1814.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Yousuf, S., Khan, M., Fazal, S., Butt, M. & Basha, F. Z. (2012). Acta Cryst. E68, o1101.