Abstract
In the title compound, C15H11NO4, the dihedral angle formed by the benzene ring and the essentially planar 2-benzofuran ring system is 55.93 (3)°. In the crystal, intermolecular O—H⋯O hydrogen bonds link pairs of molecules, generating centrosymmetric R 2 2(8) ring motifs. These dimeric units are connected via N—H⋯O hydrogen bonds, forming C(6) chains along [100].
Highlights
C15H11NO4, the dihedral angle formed by the benzene ring and the essentially planar 2-benzofuran ring system is 55.93 (3)
The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry
The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2
Summary
R factor = 0.035; wR factor = 0.101; data-to-parameter ratio = 12.2. C15H11NO4, the dihedral angle formed by the benzene ring and the essentially planar 2-benzofuran ring system is 55.93 (3). H O hydrogen bonds link pairs of molecules, generating centrosymmetric R22(8) ring motifs. These dimeric units are connected via N—H O hydrogen bonds, forming C(6)
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