Crystal structures and Hirshfeld surface analyses of bis-[ N, N-bis-(2-meth-oxy-eth-yl)di-thio-carbamato-κ²S, S']di- n-butyl-tin(IV) and [ N-(2-meth-oxy-eth-yl)- N-methyl-dithio-carbamato-κ²S, S']tri-phenyl-tin(IV)

The crystal and mol-ecular structures of the two title organotin di-thio-carbamate compounds, [Sn(C₄H₉)₂(C₇H₁₄NO₂S₂)₂], (I), and [Sn(C₆H₅)₃(C₅H₁₀NOS₂)], (II), are described. Both structures feature asymmetrically bound di-thio-carbamate ligands leading to a skew-trapezoidal bipyramidal geometry for the metal atom in (I) and a distorted tetra-hedral geometry in (II). The complete mol-ecule of (I) is generated by a crystallographic twofold axis (Sn site symmetry 2). In the crystal of (I), mol-ecules self-assemble into a supra-molecular array parallel to (10-1) via methyl-ene-C-H⋯O(meth-oxy) inter-actions. In the crystal of (II), supra-molecular dimers are formed via pairs of weak phenyl-C-H⋯π(phen-yl) contacts. In each of (I) and (II), the specified assemblies connect into a three-dimensional architecture without directional inter-actions between them. Hirshfeld surface analyses confirm the importance of H⋯H contacts in the mol-ecular packing of each of (I) and (II), and in the case of (I), highlight the importance of short meth-oxy-H⋯H(but-yl) contacts between layers.