metal-organic compounds
In the crystal structure of the title compound, [Co(NCS)2(H2O)4]·2C5H6N2O2, the six-coordinated CoII complex lies on a special position of site symmetry 2/m. The methylpyrazine dioxide lies on a mirror plane and links with the CoII complex via O—HO hydrogen bonding.
organic compounds
The title compound, C21H21N3O3, is a neutral potentially tridentate ligand in an enamine-keto form, stabilized by an intramolecular N—HO hydrogen bond. There are two molecules in the asymmetric unit.