Download citation
Download citation

link to html
The title compound, C17H10O2, is nearly planar, the maximum atomic deviation being 0.053 (2) Å. In the mol­ecule, an intra­molecular O—H...O hydrogen bond generates an S(6) ring motif. In the crystal, inversion-related mol­ecules are linked by pairs of weak C—H...O hydrogen bonds, forming dimers. π–π stacking is observed in the crystal structure, the closest centroid–centroid distance being 3.7846 (16) Å.

Download citation
Download citation

link to html
In the title compound, C13H11N3O2, an intra­molecular O—H...N hydrogen bond generates an S(7) ring. The dihedral angle between the mean plane of the benzene ring and the imidazolidinone ring is 3.05 (2)°. In the crystal, inversion-related mol­ecules are linked by dual C—H...Ocarbon­yl hydrogen bonds to form a dimer with an R22(14) graph-set motif. A C—H...Ohy­droxy inter­action links pairs of mol­ecules into another type of cyclic dimer with an R22(18) motif. The mol­ecules are further linked by C—H...N inter­actions to form layers parallel to (001). Offset π–π stacking [3.3877 (8) Å] is observed in the crystal structure, with an inter­planar spacing between the planes of neighboring benzene rings of 3.444 (1) Å.

Download citation
Download citation

link to html
In the title compound, C17H14N2O2, the asymmetric unit comprises two mol­ecules that are comformationally similar [the dihedral angles between the phenyl rings in each are 46.35 (2) and 48.04 (3)°], with the conformation stabilized by intra­molecular O—H...N hydrogen bonds, which generate S(7) rings. In the crystal, inversion-related mol­ecules are linked by pairs of weak C—H...O hydrogen bonds, forming dimers with an R22(16) graph-set motif. Weak inter-ring π–π stacking is observed in the structure, the shortest centroid-to-centroid distance being 3.7480 (13) Å.

Download citation
Download citation

link to html
The title compound, C18H19N3O, displays an E conformation with respect to the C=N double bond. The dihedral angle between the mean planes of the two benzene rings is 24.49 (3)°. An intra­molecular O—H...N hydrogen bond generates an S(6) ring. In the crystal, mol­ecules are linked by nonclassical inter­molecular C—H...O hydrogen bonds to form an infinite one-dimensional chain along [010], generating a C(8) motif.

Download citation
Download citation

link to html
In the title compound, C10H5N3O2, the benzyl­idene­malono­nitrile unit is nearly planar, with a maximum deviation of 0.129 (2) Å for a terminal N atom; the nitro group is approximately coplanar with the benzene ring [dihedral angle = 8.8 (3)°]. An intra­molecular C—H...N hydrogen bond stabilizes the mol­ecular conformation.
Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds