Benzamide–picric acid (1/1)

Abstract

In the title compound, C7H7NO·C6H3N3O7, one of the nitro groups of the picric acid mol­ecule lies in the plane of the attached benzene ring [dihedral angle = 1.4 (1)°] while the other two are twisted away by 9.9 (1) and 30.3 (1)°. In the benzamide mol­ecule, the amide group is almost coplanar with the benzene ring [dihedral angle = 4.4 (1)°]. An intra­molecular O—H⋯O hydrogen bond generates an S6 ring motif. In the crystal, mol­ecules are linked into a ribbon-like structure along the b axis by O—H⋯O and N—H⋯O inter­molecular hydrogen bonds. In addition, C—H⋯O hydrogen bonds and short O⋯O contacts [2.828 (2) Å] are observed.

Picric acid–2,4,6-trichloroaniline (1/1)

“…Comment 2,4,6-Trinitrophenol (picric acid), was primarily used to manufacture explosives and is also used as an intermediate in dye manufacturing. The crystal structures of a large number of picrate salts and picric acid complexes have been studied to determine the conformational features and to understand charge transfer processes (Li et al, 2009;Nagata et al, 1995;Sivaramkumar et al, 2010, Smith et al, 2004. We herein report the 1:1 cocrystal structure of 2,4,6-trichloroaniline and picric acid C 6 H 4 Cl 3 N .…”

“…The crystal structures of picrate salts and picric acid complexes have been studied to investigate charge-transfer processes, see: Nagata et al (1995); Smith et al (2004). For the crystal structures of picric acid complexes, see: Li (2009); Sivaramkumar et al (2010).…”

2-Aminoanilinium picrate

“…For the crystal structures of picric acid complexes, see: Harrison et al (2007); Li (2009); Saminathan et al (2007); Sivaramkumar et al (2010). For their conformational features and charge-transfer processes, see: Nagata et al (1995); Smith et al (2004).…”