2-Amino-4-nitro-phenol-1-(2,4,6-trihy-droxy-phen-yl)ethanone (1/1)

Abstract

In the title compound, C6H6N2O3 center dot C8H8O4, the 2-amino-4-nitrophenol (ANP) and 1-(2,4,6-trihydroxyphenyl) ethanone (THA) molecules are both nearly planar, with r.m.s. deviations of 0.0630 and 0.0313 angstrom, respectively. The angle between the least-squares planes of THA and ANP is 48.99 (2)degrees. In THA, an intramolecular O-H center dot center dot center dot O hydrogen bond generates an S(6) ring motif. In the crystal, N-H center dot center dot center dot O, O-H center dot center dot center dot O and O-H center dot center dot center dot N hydrogen bonds lead to the formation of a three-dimensional network. There are also intermolecular pi-pi interactions between the benzene rings of ANP-ANP and of THA-THA molecules, with centroid-centroid distances of 3.5313 (14) and 3.8440 (16) angstrom, respectively. Weak C-O center dot center dot center dot pi and N-O center dot center dot center dot pi interactions also occur.