No abstract

There are two independent mol­ecules in the asymmetric unit of the title mol­ecule, C8H9N3S2, both of which exhibit an E conformation with the pyridine ring and di­thio­carbazate fragment located on opposite sides of the C=N bond. The pyridine ring and di­thio­carbazate group are approximately coplanar, with dihedral angles of 4.74 (1) and 8.77 (1)° between their planes in the two mol­ecules. In the crystal, mol­ecules are linked to each other via N—H⋯N hydrogen bonds, forming zigzag chains parallel to [10-1].

In the title compound, [Zn(NCS)2(C24H22N4O)]·C3H7NO, the ZnII cation is N,N′,N′′-chelated by one 2-({4-[2,6-bis­(pyridin-2-yl)pyridin-4-yl]phen­yl}(meth­yl)amino)­ethanol ligand and coordinated by two thio­cyanate anions in a distorted N5 trigonal–bipyramidal geometry. In the mol­ecule, the three pyridine rings are approximately coplanar [maximum deviation = 0.026 (5) Å], and the mean plane of the three pyridine rings is twisted to the benzene ring with a small dihedral angle of 5.9 (2)°. In the crystal, complex mol­ecules are linked by weak C—H⋯O hydrogen bonds into supra­molecular chains propagated along [110]; π–π stacking is observed between adjacent chains [centroid–centroid distance = 3.678 (4) Å]. The di­methyl­formamide solvent mol­ecules are linked with the complex chains via weak C—H⋯O hydrogen bonds.