Conductance and Viscosity Studies of Ion Solvation in Mixed DMSO-MeOH Solvent

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Title:Conductance and Viscosity Studies of Ion Solvation in Mixed DMSO-MeOH Solvent
Creators:
Chauhan, Mohinder S.
Sharma, Kishore C.
Kumar, Girish
Chauhan, Suvarcha
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 67, 8, pp. 1141-1153
Uncontrolled Keywords:Solvation, Viscosity, Solvent mixtures, Methanol, Cations, Conductance, Ion-solvent interaction, Dimethyl sulfoxide

Abstract

Solvation behavior of Li<sup>+</sup>, Na<sup>+</sup>, K<sup>+</sup>, Ag<sup>+</sup>, Cl<sup>-</sup>, Br<sup>-</sup>, I<sup>-</sup> and ClO<sub>4</sub><sup>-</sup> ions is reported at 25 °C from conductance and viscosity measurements of LiClO<sub>4</sub>, NaClO<sub>4</sub>, KClO<sub>4</sub>, AgClO<sub>4</sub>, LiCl, Bu<sub>4</sub>NClO<sub>4</sub>, Bu<sub>4</sub>NBr, Bu<sub>4</sub>NI, Ph<sub>4</sub>PBPh<sub>4</sub>, Bu<sub>4</sub>NBPh<sub>4</sub>, NaBPh<sub>4</sub>, Ph<sub>4</sub>PBr and NaBr in mixed DMSO-MeOH solvent. Anomalous behavior of Ag<sup>+</sup> is interpreted as resulting from specific ion-solvent interactions. However, Li<sup>+</sup>, Na<sup>+</sup> and K<sup>+</sup> interact preferentially with DMSO electrostatically through oxygen atom of SO group. Initial decrease in solvation of alkali metal ions on addition of MeOH to pure DMSO is interpreted as an indication of strong intermolecular interactions between solvent components preferably through the hydrogen bond formation. The region of relatively strong intermolecular interactions is found between 10 and 40 mole % MeOH. The viscosity studies imply the existence of interactions between Br<sup>-</sup> or I<sup>-</sup> and DMSO. The studies however, indicate poor solvation of anions in this solvent system. <p>

Title:Conductance and Viscosity Studies of Ion Solvation in Mixed DMSO-MeOH Solvent
Creators:
Chauhan, Mohinder S.
Sharma, Kishore C.
Kumar, Girish
Chauhan, Suvarcha
Uncontrolled Keywords:Solvation, Viscosity, Solvent mixtures, Methanol, Cations, Conductance, Ion-solvent interaction, Dimethyl sulfoxide
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:67
Number:8
Page Range:pp. 1141-1153
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20021141UNSPECIFIED
ID Code:1978
Item Type:Article
Deposited On:06 Feb 2009 17:14
Last Modified:06 Feb 2009 16:14

Citation

Chauhan, Mohinder S.; Sharma, Kishore C.; Kumar, Girish; Chauhan, Suvarcha (2002) Conductance and Viscosity Studies of Ion Solvation in Mixed DMSO-MeOH Solvent. Collection of Czechoslovak Chemical Communications, 67 (8). pp. 1141-1153. ISSN 0010-0765

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