Crystal structures and Hirshfeld surface analyses of bis[N,N-bis(2-methoxyethyl)dithiocarbamato-kappa S-2,S ']di-n-butyltin(IV) and [N-(2-methoxyethyl)-N-methyldithiocarbamato-kappa S-2,S ']triphenyltin(IV)

The crystal and molecular structures of the two title organotin dithiocarbamate compounds, [Sn(C4H9)(2)(C7H14NO2S2)(2)], (I), and [Sn(C6H5)(3)(C5H10NOS2)], (II), are described. Both structures feature asymmetrically bound dithiocarbamate ligands leading to a skew-trapezoidal bipyramidal geometry for the metal atom in (I) and a distorted tetrahedral geometry in (II). The complete molecule of (I) is generated by a crystallographic twofold axis (Sn site symmetry 2). In the crystal of (I), molecules self-assemble into a supramolecular array parallel to (101) via methylene-C-H center dot center dot center dot O(methoxy) interactions. In the crystal of (II), supramolecular dimers are formed via pairs of weak phenyl-C-H center dot center dot center dot pi(phenyl) contacts. In each of (I) and (II), the specified assemblies connect into a three-dimensional architecture without directional interactions between them. Hirshfeld surface analyses confirm the importance of H center dot center dot center dot H contacts in the molecular packing of each of (I) and (II), and in the case of (I), highlight the importance of short methoxy-H center dot center dot center dot H(butyl) contacts between layers.