Di- n -but-yl[ N '-(3-meth-oxy-2-oxidobenzyl-idene)- N -phenyl-carbamohydrazono-thio-ato]tin(IV): crystal structure, Hirshfeld surface analysis and computational study

The title diorganotin Schiff base derivative, [Sn(C H ) (C H N O S)], features a penta-coordinated tin centre defined by the N, , -donor atoms of the di-anionic Schiff base ligand and two methyl-ene-C atoms of the -butyl substituents. The resultant C NOS donor set defines a geometry inter-mediate between trigonal-bipyramidal and square-pyramidal. In the crystal, amine-N-H⋯O(meth-oxy) hydrogen bonding is found in a helical, supra-molecular chain propagating along the -axis direction. The chains are assembled into a layer parallel to (01) with methyl-ene-C-H⋯π(phen-yl) inter-actions prominent; layers stack without directional inter-actions between them. The analysis of the calculated Hirshfeld surface showed the presence of weak methyl-ene-C-H⋯π(phen-yl) inter-actions and short H⋯H contacts in the inter-layer region. Consistent with the nature of the identified contacts, the stabilization of the crystal is dominated by the dispersion energy term.