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

Acta Crystallogr E Crystallogr Commun. 2021 Feb 23;77(Pt 3):286-293. doi: 10.1107/S2056989021001870. eCollection 2021 Mar 1.

Abstract

The title diorganotin Schiff base derivative, [Sn(C4H9)2(C15H13N3O2S)], features a penta-coordinated tin centre defined by the N,O,S-donor atoms of the di-anionic Schiff base ligand and two methyl-ene-C atoms of the n-butyl substituents. The resultant C2NOS 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 b-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.

Keywords: Hirshfeld surface analysis; Schiff base; crystal structure; hydrogen bonding; organotin; thio­semicarbazone.

Grants and funding

This work was funded by Putra Group Initiative grant IPB No. 9581001. Sunway University Sdn Bhd grant GRTIN-IRG-01-2021.