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Vol. 31 No. 7 (2019): Vol 31 Issue 7

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Solvation Behaviour of Some Copper(I) Complexes in Binary Mixtures of Dimethylsulfoxide with Dimethylacetamide and Dimethylformamide at 298 K

https://doi.org/10.14233/ajchem.2019.21927
Bal Krishan Vermani
Department of Chemistry, D.A.V. College, Chandigarh-160011, India
Vivek Pathania
Department of Chemistry, D.A.V. College, Chandigarh-160011, India
Shashi Kiran Vermani
Joint Director (Retd.) Higher Education, Haryana, Panchkula-134109, India
Shrutila Sharma
Department of Chemistry, D.A.V. College, Chandigarh-160011, India

Corresponding Author(s) : Vivek Pathania

viveksinghpathania@yahoo.com

Asian Journal of Chemistry, Vol. 31 No. 7 (2019): Vol 31 Issue 7

Abstract

Molar conductance values of a large number of copper(I) perchlorate complexes behaving as strong 1:1 electrolytes, have been measured in binary mixtures of dimethylsulfoxide with dimethylacetamide and dimethylformamide at 298 K. The measured conductance data have been analyzed to obtain the limiting molar conductance (Λo) of these electrolytes. The limiting ion conductances (λ±°) for various ions in the binary mixtures of DMSO with DMA and DMF have been calculated by an indirect method using [Bu4N]BPh4 as a reference electrolyte. The actual ionic radii (ri) values for these copper(I) complex ions increase significantly with increase in DMA composition whereas the corresponding ri values for these ions do not show a significant increase with increase in DMF composition that indicates no preferential solvation of copper(I) complex ions for DMF over DMSO, thus showing that DMA solvates the copper(I) complex ions more strongly than DMF.

Keywords

Molar conductance Limiting molar conductance Limiting ion conductance Solvated radii Preferential solvation
Vermani, B. K., Pathania, V., Vermani, S. K., & Sharma, S. (2019). Solvation Behaviour of Some Copper(I) Complexes in Binary Mixtures of Dimethylsulfoxide with Dimethylacetamide and Dimethylformamide at 298 K. Asian Journal of Chemistry, 31(7), 1476–1480. https://doi.org/10.14233/ajchem.2019.21927
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