Abstract
In the title molecule, C19H17N3O6, the indole ring system is essentially planar (r.m.s. deviation = 0.009 Å) and forms a dihedral angle of 31.96 (9)° with the nitro-substituted benzene ring. In the crystal, molecules are linked by pairs of N—H⋯O hydrogen bonds, forming inversion dimers which are connected by further N—H⋯O hydrogen bonds into a two-dimensional network parallel to (102).
Highlights
In the title molecule, C19H17N3O6, the indole ring system is essentially planar (r.m.s. deviation = 0.009 A ) and forms a dihedral angle of 31.96 (9) with the nitro-substituted benzene ring
Molecules are linked by pairs of N—HÁ Á ÁO hydrogen bonds, forming inversion dimers which are connected by further N—HÁ Á ÁO hydrogen bonds into a twodimensional network parallel to (102)
This work was in part supported by the National Science Center
Summary
Key indicators: single-crystal X-ray study; T = 293 K; mean (C–C) = 0.003 A; R factor = 0.044; wR factor = 0.138; data-to-parameter ratio = 13.1. C19H17N3O6, the indole ring system is essentially planar (r.m.s. deviation = 0.009 A ) and forms a dihedral angle of 31.96 (9) with the nitro-substituted benzene ring. Molecules are linked by pairs of N—HÁ Á ÁO hydrogen bonds, forming inversion dimers which are connected by further N—HÁ Á ÁO hydrogen bonds into a twodimensional network parallel to (102). Related literature For background to and potential applications of the title compound, see: Freer & McKillop (1996); Um et al (2006, 2008); Gray et al (1977); Zawadzka et al (2012)
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