Transport Studies of Some 1:1 Copper(I) Perchlorate Complexes in Acetonitrile-Dimethylsulphoxide Mixtures
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Dip Singh Gill
Abstract
Solvation behaviour of some copper(I) perchlorate complexes has been investigated in binary mixtures of acetonitrile (AN) and dimethylsulphoxide (DMSO) containing 1.0, 0.8, 0.6, 0.4, 0.2 and 0 mol fraction of AN at 298 K by molar conductances and viscosity measurements. The conductance data have been analyzed by using the Shedlovsky method to calculate limiting molar conductance (Λo) and the viscosity data by the Jones–Dole equation to evaluate viscosity B-coefficients of various salts. Limiting ion conductances (λio), solvated radii (ri) and ionic viscosity B± coefficients in all solvent systems have been evaluated using Gill´s modification based on Bu4NBPh4 as a reference electrolyte. The studies show that all copper(I) complexes are solvated and the extent of solvation is stronger in AN and AN rich regions than in DMSO and DMSO rich regions. The ClO4- ion is poorly solvated in AN+DMSO mixtures. The viscosity results are in good agreement with the results obtained from the conductance studies.
© by Oldenbourg Wissenschaftsverlag, Chandigarh, Germany
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