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The title compound, [Sn(C6H5)3(C9H10NS2)], has two independent mol­ecules in the asymmetric unit and each features a tetra­hedrally coordinated SnIV atom as the dithio­carbamate ligand coordinates in a monodentate fashion. As the non-coordinating thione S atom is proximate to the Sn atom [Sn...S(thione) = 3.1477 (6) and 2.9970 (5) Å for the independent mol­ecules], distortions from the ideal geometry are evident [the widest angle being 120.48 (5)°]. The most notable feature of the crystal packing is the formation of C—H...π inter­actions that lead to the formation of supra­molecular layers parallel to (\overline{3}2\overline{1}).

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The title compound, [Sn(C4H9)2(C9H10NS2)2], features a tetra­hedrally coordinated SnIV atom; the dithio­carbamate ligands coordinate in a monodentate fashion, accompanied by two n-butyl chains. The non-coordinating thione S atoms are each proximate to the SnIV atom [3.0136 (7) and 2.9865 (8) Å], giving rise to distortions from the ideal geometry as evident in the wide C—Sn—C bond angle of 139.06 (12) °. In the crystal, C—H...S inter­actions lead to the formation of a linear supra­molecular chain along the b axis. The chains are aligned into layers by C—H...π inter­actions, and the layers stack along [001]. One of the ethyl groups is statistically disordered over two sets of sites.

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The mol­ecule of the title compound, C15H14N4O3, is completed by the application of crystallographic twofold symmetry, with the carbonyl group lying on the rotation axis. The mol­ecule is close to planar: the greatest deviation of a torsion angle from 0° is 7.3 (2)° about the bond linking the phenol ring to the rest of the mol­ecule. An intra­molecular O—H...N(imine) hydrogen bond is formed in each half of the mol­ecule. The carbonyl O atom is anti with respect to the amine H atoms and this allows for the formation of N—H...O(hydrox­yl) hydrogen bonds in the crystal, which results in supra­molecular layers lying parallel to (100).
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