organic compounds
Open access
The indazole ring system of the title compound, C17H18ClN3O4S, is almost planar (r.m.s. deviation = 0.0113 Å) and forms dihedral angles of 32.22 (8) and 57.5 (3)° with the benzene ring and the mean plane through the 4-ethoxy group, respectively. In the crystal, molecules are connected by pairs of N—HO hydrogen bonds into inversion dimers, which are further linked by π–π interactions between the diazole rings [intercentroid distance = 3.4946 (11) Å], forming chains parallel to [101].
data reports
Open access
The molecule of the title compound, C11H8N2, is approximately planar (r.m.s.deviation for all non-H atoms = 0.023 Å). The malononitrile C-C-C angle is 113.54 (13)°. In the crystal, molecules stack head-to-tail along [010]. There are no significant intermolecular interactions present.