Isotypic crystal structures of 1-benzyl-4-(4-bromophenyl)-2-imino-1,2,5,6,7,8,9,10-octahydrocycloocta[b]pyridine-3-carbonitrile and 1-benzyl-4-(4-fluorophenyl)-2-imino-1,2,5,6,7,8,9,10-octahydrocycloocta[b]pyridine-3-carbonitrile
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Published:2014-10-18
Issue:11
Volume:70
Page:344-347
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ISSN:1600-5368
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Container-title:Acta Crystallographica Section E Structure Reports Online
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language:
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Short-container-title:Acta Cryst E
Author:
Nagalakshmi R. A.,Suresh J.,Maharani S.,Kumar R. Ranjith,Lakshman P. L. Nilantha
Abstract
The molecules of the two isotypic title compounds, C25H24BrN3, (I), and C25H24FN3, (II), comprise a 2-iminopyridine ring fused with a cyclooctane ring. In (I), the cyclooctane ring adopts a twisted chair–chair conformation, while in (II), this ring adopts a twisted boat–chair conformation. The dihedral angles between the planes of the pyridine ring and the bromobenzene and phenyl rings are 80.14 (12) and 71.72 (13)°, respectively, in (I). The equivalent angles in (II) are 75.25 (8) and 68.34 (9)°, respectively. In both crystals, inversion dimers linked by pairs of C—H...N interactions generateR22(14) loops, which are further connected by weak C—H...π interactions, generating (110) sheets.
Publisher
International Union of Crystallography (IUCr)
Subject
Condensed Matter Physics,General Materials Science,General Chemistry
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