Abstract
In the title compound, C16H13NO4, the carbazole ring system is almost planar with non-H atoms possessing a mean deviation from planarity of 0.037 Å. The two ester groups are orientated trans to one another and tilted slightly from the mean plane of the carbazole ring system, making dihedral angles of 8.12 (6) and 8.21 (5)°. In the crystal, molecules are linked by pairs of N—H⋯O hydrogen bonds forming inversion dimers. The dimers are linked by parallel slipped π–π interactions, forming slabs propagating along the b-axis direction [inter-centroid distance = 3.6042 (8) Å, inter-planar distance = 3.3437 (5) Å, slippage = 1.345 Å].
Highlights
C16H13NO4, the carbazole ring system is almost planar with non-H atoms possessing a mean deviation from planarity of 0.037 Å
Molecules are linked by pairs of N—H O hydrogen bonds forming inversion dimers
The bond distances and angles are similar to those observed in some carbazole derivatives (Clarke & Spink, 1969; Gajda et al, 2014,) and a structurally characterized carbazole dicarboxylic acid (Weseliński et al, 2014)
Summary
C16H13NO4, the carbazole ring system is almost planar with non-H atoms possessing a mean deviation from planarity of 0.037 Å. The two ester groups are orientated trans to one another and tilted slightly from the mean plane of the carbazole ring system, making dihedral angles of 8.12 (6) and 8.21 (5) . Molecules are linked by pairs of N—H O hydrogen bonds forming inversion dimers. H atoms treated by a mixture of independent and constrained refinement max = 0.22 e Å3
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