Ion solvation and association in LiClO4 – dimethylsulfoxide system
DOI:
https://doi.org/10.15407/dopovidi2014.01.125Keywords:
association, ion solvation, LiClO4 – dimethylsulfoxideAbstract
Ionic equilibria in theLiClO4 – dimethylsulfoxide (DMSO) system at 90 ºC in a concentration range from 5 to 25% mole fractions of a salt have been investigated by means of Raman spectroscopy. Spectroscopic manifestations of hydrogen bonds between molecules of DMSO and ClO4− ions were detected. Concentrations of monomeric, dimeric, and solvating DMSO molecules; free solvent molecules and those included in the ClO4− ion solvation sphere; free anions, ion pairs, separated by a solvent, and contact ion pairs are identified. Conclusions have been made about the composition of all components of solutions.
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