In the title compound, [Ni(C15H14N3O2S)2], the NiII atom lies on a center of symmetry. The deprotonated ligands act as N,S-donors, forming five-membered metalla-rings. The NiII atom is four-coordinated in a slightly distorted square-planar environment. In the crystal, the discrete complex molecules are linked by weak N—H⋯O hydrogen bonds, generating chains along [110]. The chains are further connected via weak O—H⋯N interactions into a layered network extending parallel to (001).
The conformation of the title molecule, C17H17N3S, is stabilized by an intramolecular N—H⋯N hydrogen bond involving the azometinic group. The dihedral angle between the two aromatic rings is 36.49 (06)°. The non-aromatic ring of the tetralone substituent adopts a sofa conformation. In the crystal, molecules are linked by pairs of N—H⋯S hydrogen bonds related via centres of symmetry, forming dimers.
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