Octahedral cobalt(III) complexes in dipolar aprotic solvents. II. Association between cis- and trans-dichlorobisethylenediamine cobalt(III) cations,[Co en2 Cl2]+, and chloride and bromide ions in the solvents NN-dimethylformamide, dimethyl sulphoxide, and LVN-dimethylacetamide

The replacement, by hydroxide ion, of the coordinated halide from some halogenopentamminecobalt(III) and ‐Chromium(III) cations in aqueous dioxan has been studied over a range of alkali concentrations up to 0.1 M. With excess of hydroxide ion at constant ionic strength, pseudo first‐order rate constants were obtained. The results support a pre‐equilibrium association of complex and hydroxide ions in these media, but do not provide distinction as to whether the resulting ion‐pair subsequently reacts by direct exchange or by proton removal. The extents of ion association are found to be greater for the cobalt(III) than for the chromium(III) system, increasing with the amount of dioxin in the solvent mixture.

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Preparation of some dimethylformamide- and dimethylsulfoxide-Cr(III)-ammine complexes and aquation kinetics of Cr(NH3)5(DMF)3+ and trans-Cr(NH3)4(DMF)Cl2+

Riccieri

Zinato

1981

Journal of Inorganic and Nuclear Chemistry

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Octahedral cobalt(III) complexes in dipolar aprotic solvents. II. Association between cis- and trans-dichlorobisethylenediamine cobalt(III) cations,[Co en2 Cl2]+, and chloride and bromide ions in the solvents NN-dimethylformamide, dimethyl sulphoxide, and LVN-dimethylacetamide

Cited by 15 publications

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Dimethyl Sulfoxide in Inorganic Chemistry

Dimethyl Sulfoxide in Inorganic Chemistry

Octahedral cobalt(III) complexes of the chloropentammine type. XVII. Association and reaction of some halogenopentamminecobalt(III) and halogenopentamminechromium(III) cations with hydroxide in aqueous dioxan

Preparation of some dimethylformamide- and dimethylsulfoxide-Cr(III)-ammine complexes and aquation kinetics of Cr(NH3)5(DMF)3+ and trans-Cr(NH3)4(DMF)Cl2+

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