The title compound, [Zn(C7H4N2O3S)2(C2H6OS)2], is a neutral four-coordinate complex with a tetrahedral geometry. The metal atom is surrounded by the two dimethyl sulfoxide (DMSO) ligands, each coordinating through the O atom, and two anionic saccharinate (1,1,3-trioxo-2,3-dihydro-1λ6,2-benzothiazol-2-ide) ligands coordinating through the N atom. The tetrahedral geometry is slightly distorted as is evident from the N—Zn—N bond angle of 113.85 (6)°, the O—Zn—O bond angle of 98.92 (6)° and O—Zn—N bond angles of 116.96 (6) and 103.93 (6)°. The Zn—N bond lengths are 1.9742 (15) and 2.0025 (16) Å. The Zn—O bond lengths are 1.9806 (14) Å and 1.9468 (14) Å. The DMSO ligand coordinates through the lone pair of electrons on the O atom, as can be seen from the Zn—O—S bond angle of 131.30 (8)°.
The title compound, [Cd(C7H4NO3S)2(C2H6OS)2(H2O)2], contains a Cd2+ cation in an octahedral coordination environment. The metal atom is surrounded by the two different neutral ligands dimethyl sulfoxide (DMSO) and water, each coordinating through the O atom. The anionic saccharinate (sac; 1,1,3-trioxo-2,3-dihydro-1λ6,2-benzothiazol-2-ide) ligand coordinates through the N atom. Each of the three similar ligand pairs is in a trans configuration with respect to each other. The Cd atom lies on a crystallographic center of symmetry. The DMSO ligand coordinates through the lone pair of electrons on the O atom, as can be seen from the Cd—O—S bond angle of 123.96 (9)°.
The title complex, [Co(C7H4NO3S)2(C2H6OS)2(H2O)2], contains a Co2+ cation in an octahedral coordination environment. The metal atom is surrounded by two different neutral ligands, namely dimethylsulfoxide (DMSO) and water, each coordinating through the O atom. The anionic saccharinate (sac; 1,1,3-trioxo-2,3-dihydro-1λ6,2-benzothiazol-2-ide) ligand coordinates through the N atom. Each of the three similar ligand pairs is in a trans configuration with respect to each other. The Co atom lies on a crystallographic center of symmetry and the octahedral geometry is not significantly distorted. A short O—H⋯O hydrogen bond is present between a water H atom and the ketone O atom; two longer hydrogen bonds (intra- and intermolecular) are also present between a water H and a sulfonic O atom, forming a supramolecular assembly through head-to-tail aggregation between adjacent complexes.
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