%0 Journal Article
%T 2-(4-Chloro-3,3,7-trimethyl-2,3-dihydro-1H-indol-2-ylidene)-2-cyanoacetamide
%A Madeleine Helliwell
%A Mehdi M. Baradarani
%A Maryam Alyari
%A Arash Afghan
%J Acta Crystallographica Section E
%D 2012
%I International Union of Crystallography
%R 10.1107/s1600536811053918
%X Reaction of 2-(4-chloro-3,3,7-trimethyl-2,3-dihydro-1H-indol-2-ylidene)propanedial with hydroxylamine gives the title compound, C14H14ClN3O, in which the ring N atom is essentially planar [sum of angles around the ring N atom = 361¡ã], indicating conjugation with the 2-cyanoacrylamide unit. The orientation of the acetamide group arises from intramolecular hydrogen bonding between the indole N¡ªH and carbonyl groups. In the crystal, inversion-related acetamide groups form N¡ªH...O hydrogen-bonded dimers in graph-set R22(8) motifs, whilst dimers are also formed by pairs of amine¨Cnitrile N¡ªH...N hydrogen bonds in R22(12) motifs. These interactions together generate ribbons that propagate along the b-axis direction.
%U http://scripts.iucr.org/cgi-bin/paper?S1600536811053918