Crystal structure of a 1:1 adduct of tri-phenyl-tin chloride with 3-cyclo-hexhyl-2-phenyl-1,3-thia-zolidin-4-one

This is the second reported crystal structure of an adduct of a 2,3-disubstituted 1,3-thia­zolidine-4-one ligand and tri­phenyl­tin chloride. The tin atom adopts a trigonal–bipyramidal coordination geometry with the O and Cl atoms in the axial sites.

In the centrosymmetric (racemic) title compound, chlorido­(3-cyclo­hexhyl-2-phenyl-1,3-thia­zolidin-4-one-κO)tri­phenyl­tin(IV), [Sn(C₆H₅)₃Cl(C₁₅H₁₉NOS)], the tin(IV) atom exhibits a trigonal–bipyramidal coordination geometry with the three phenyl groups in equatorial positions and the chloride anion and ligand oxygen atom present at axial sites [O—Sn—Cl = 175.07 (14)°]. The thia­zolidinone ring of the ligand adopts an envelope conformation with the S atom as the flap. The dihedral angles between the heterocycle ring plane (all atoms) are 44.3 (9)° with respect to the pendant C-phenyl plane and 34.3 (11)° to the N-cyclo­hexyl ring (all atoms). The C-phenyl and N-cyclo­hexyl ring are close to orthogonal to each other, with a dihedral angle of 81.1 (4)° between them. In the crystal, mol­ecules are linked by weak C—H⋯Cl hydrogen bonds to generate [001] chains.

Crystal structure of the 1:1 adduct of 2,3-diphenyl-3,4,5,6-tetra-hydro-2H-1,3-thia-zin-4-one with tri-phenyl-tin chloride

The title adduct, chlorido-(2,3-diphenyl-3,4,5,6-tetra-hydro-2H-1,3-thia-zin-4-one-κO)tri-phenyl-tin, [Sn(C6H5)3Cl(C16H15NOS)], resulted from reaction of 2,3-diphenyl-3,4,5,6-tetra-hydro-2H-1,3-thia-zin-4-one with tri-phenyl-tin chloride. The thia-zine ring has an envelope conformation with the S atom forming the flap. The mol-ecule has five phenyl rings, two of them attached to the thia-zine ring at positions 2 and 3, and three in coordination with the Sn(IV) atom. The three rings of the tri-phenyl-tin group are involved in intra-molecular inter-actions of different types, C-H⋯O, edge-to-face (or T-type) π-π inter-actions with the 3-phenyl ring of the thia-zine, T-type inter-actions with both phenyl rings of the thia-zine etc. On the other hand, all the phenyl rings participate in inter-molecular π-π inter-actions. There is one instance of a 'parallel-displaced'-type inter-action extending continuously along the a-axis direction and seven instances of T-type inter-actions stabilizing the crystal lattice.

2,3-Diphenyl-1,3-thia-zolidin-4-one

The title compound, C₁₅H₁₃NOS, is a chiral mol­ecule crystallized as a racemate, with two molecules in the asymmetric unit. In each of the mol­ecules, the five-membered thia­zine ring has an envelope conformation, with the S atom forming the flap. In one mol­ecule, the angle between the two phenyl-ring planes is 82.77 (7)°, while in the other it is 89.12 (6)°. In the crystal, mol­ecules are linked into chains along the b-axis direction by C—H⋯O hydrogen bonds.