Solubility of salts of d-elements in organic and water-organic solvents: V. Inner-sphere chalcogen S-S contacts in the [Ni(DMSO)(4)(H2O)(2)]Cl-2 solvate

摘要

It was proved by the IR spectroscopy that the first coordination sphere of nickel cations in the NiCl2 center dot 2DMSO center dot 9H(2)O, NiCl2 center dot 5DMSO center dot 4H(2)O, and NiCl2 center dot 4DMSO center dot 2H(2)O compounds contains dimethyl sulfoxide and water ligands. According to X-ray structural analysis, in crystals of the NiCl2 center dot 4DMSO center dot 2H(2)O compound, noncovalent contacts between sulfur atoms of neighboring dimethyl sulfoxide molecules are realized in the inner sphere of the complex.