Hydrophobic hydration and hydrophobic interaction in tetraalkylammonium salt solutions: The cation size effect

被引：0
|
作者：
A. V. Kustov
机构：
[1] Russian Academy of Sciences,Institute of Solution Chemistry
来源：
Russian Journal of Inorganic Chemistry | 2011年 / 56卷
关键词：
Hydration Shell; Hydrophobic Hydration; Tetraalkylammonium Salt; HMPT; Short Hydrogen Bond;
D O I：
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摘要：
The heats of solution of tetrahexylammonium and tetraheptylammonium bromides in water and aqueous solutions of formamide and hexamethylphosphoric triamide have been measured at 318 and 338 K. The standard enthalpies and heat capacities of solution and the enthalpic and heart capacity parameters of amide-electrolyte pair interaction have been determined. It has been confirmed that the standard heat capacities of solution and the amide-electrolyte interaction parameters as a function of the cation size pass through an extremum. The hydrophobic hydration effect is weaker for large tetraalkylammonium cations.
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