Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 9 (September 2012)


organic compounds



lh5514 scheme

Acta Cryst. (2012). E68, o2812-o2813    [ doi:10.1107/S1600536812036276 ]

6-(4-Aminophenyl)-4-(4-ethoxyphenyl)-2-methoxynicotinonitrile

T. Suwunwong, S. Chantrapromma and H.-K. Fun

Abstract: In the title molecule, C21H19N3O2, the central pyridine ring makes dihedral angles of 14.46 (9) and 34.67 (8)° with the 4-amino- and 4-ethoxy-substituted benzene rings, respectively. The ethoxy group is essentially coplanar with the attached benzene ring [C-O-C-C torsion angle = 178.70 (16)°] as is the methoxy group with the pyridine ring [C-O-C-N torsion angle = -3.0 (3)°]. In the crystal, molecules are linked by N-H...N hydrogen bonds into chains along [201]. Weak C-H...O hydrogen bonds and C-H...[pi] interactions are also present.


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