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Title: 6-(4-Bromo-phenyl)-2-ethoxy-4-(4-ethoxyphenyl)nicotinonitrile
Authors: Chantrapromma, S.
Fun, H.-K.
Suwunwong, T.
Padaki, M.
Isloor, A.M.
Issue Date: 2010
Citation: Acta Crystallographica Section E: Structure Reports Online, 2010, Vol.66, 1, pp.o79-o80
Abstract: The mol-ecule of the title nicotinonitrile derivative, C22H 19BrN2O2, is non-planar, the central pyridine ring making dihedral angles of 7.34 (14) and 43.56 (15) with the 4-bromophenyl and 4-ethoxyphenyl rings, respectively. The ethoxy group of the 4-ethoxyphenyl is slightly twisted from the attached benzene ring [C-O-C-C = 174.2 (3) ], whereas the ethoxy group attached to the pyridine ring is in a (+)syn-clinal conformation [C-O-C-C = 83.0 (3) ]. A weak intra-molecular C-H?N inter-action generates an S(5) ring motif. In the crystal structure, the mol-ecules are linked by weak inter-molecular C-H?N inter-actions into screw chains along the b axis. These chains stacked along the a axis. ?-? inter-actions with centroid-centroid distances of 3.8724 (16) and 3.8727 (16) are also observed.
URI: 10.1107/S1600536809051861
Appears in Collections:1. Journal Articles

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