Abstract

In the title compound, C19H23N3O8, the 5-nitro-2H-indazol-2-yl unit is almost planar, with the maximum deviation from the mean plane being 0.024 (2) Å. The fused-ring system is nearly perpendicular to the three carboxyl­ate groups, with dihedral angles of 90.0 (3), 83.8 (1) and 80.4 (1)°. The ethyl groups attached to both ends of the propane chain are each disordered over two sets of sites, with site-occupancy ratios of 0.425 (17):0.575 (17) and 0.302 (15):0.698 (15). In the crystal, mol­ecules are linked by pairs of C—H⋯N hydrogen bonds, forming inversion dimers. The dimers are further linked by C—H⋯O hydrogen bonds, forming a three-dimensional network.

Highlights

  • In the title compound, C19H23N3O8, the 5-nitro-2H-indazol-2yl unit is almost planar, with the maximum deviation from the mean plane being 0.024 (2) Å

  • Molecules are linked by pairs of C—H N hydrogen bonds, forming inversion dimers

  • The dimers are further linked by C—H O hydrogen bonds, forming a threedimensional network

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Summary

Data collection

C19H23N3O8, the 5-nitro-2H-indazol-2yl unit is almost planar, with the maximum deviation from the mean plane being 0.024 (2) Å. The fused-ring system is nearly perpendicular to the three carboxylate groups, with dihedral angles of 90.0 (3), 83.8 (1) and 80.4 (1). The ethyl groups attached to both ends of the propane chain are each disordered over two sets of sites, with site-occupancy ratios of 0.425 (17):0.575 (17) and 0.302 (15):0.698 (15). Molecules are linked by pairs of C—H N hydrogen bonds, forming inversion dimers. The dimers are further linked by C—H O hydrogen bonds, forming a threedimensional network

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Refinement

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