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Diaqua-bis-(dimethyl sulfoxide-?O)bis(saccharinato-?N)cobalt(II).

ABSTRACT: The title complex, [Co(C(7)H(4)NO(3)S)(2)(C(2)H(6)OS)(2)(H(2)O)(2)], contains a Co(2+) cation in an octa-hedral coordination environment. The metal atom is surrounded by two different neutral ligands, namely dimethyl-sulfoxide (DMSO) and water, each coordinating through the O atom. The anionic saccharinate (sac; 1,1,3-trioxo-2,3-dihydro-1?(6),2-benzothia-zol-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 octa-hedral 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 inter-molecular) are also present between a water H and a sulfonic O atom, forming a supramolecular assembly through head-to-tail aggregation between adjacent complexes.

SUBMITTER: Potwana FS

PROVIDER: S-EPMC3238601 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature

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Diaqua-bis-(dimethyl sulfoxide-κO)bis(saccharinato-κN)cobalt(II).

Potwana Fezile S W FS Van Zyl Werner E WE

Acta crystallographica. Section E, Structure reports online 20111105 Pt 12

The title complex, [Co(C(7)H(4)NO(3)S)(2)(C(2)H(6)OS)(2)(H(2)O)(2)], contains a Co(2+) cation in an octa-hedral coordination environment. The metal atom is surrounded by two different neutral ligands, namely dimethyl-sulfoxide (DMSO) and water, each coordinating through the O atom. The anionic saccharinate (sac; 1,1,3-trioxo-2,3-dihydro-1λ(6),2-benzothia-zol-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 ...[more]

PMID: 22199492

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Project description:The title compound, [Zn(C(7)H(4)N(2)O(3)S)(2)(C(2)H(6)OS)(2)], is a neutral four-coordinate complex with a tetra-hedral 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-1?(6),2-benzo-thia-zol-2-ide) ligands coordinating through the N atom. The tetra-hedral 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)°.

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