Anion-exchange extraction of zine rodanide complexes by structurally different quaternary ammonium salts

被引：0
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作者：
E. M. Rakhman’ko
I. V. Kachanovich
M. Ya. Tarazevich
机构：
[1] Belarussian State University,Research Institute for Physicochemical Problems
[2] Belarussian State University,undefined
来源：
Russian Journal of Inorganic Chemistry | 2006年 / 51卷
关键词：
Quaternary Ammonium Salt; Picrate; Exchange Constant; Methyl Substituent; NaSCN;
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摘要：
Anion-exchange extraction constants have been determined for the extraction of zine rodanide complexes from neutral solutions by higher quaternary ammonium salts (QASs) of asymmetric geometry containing different numbers of methyl radicals in their cations. The extraction power of toluene solutions of ultralipophilic QASs with respect to zinc rodanide complexes is lower than that of QASs with long hydrocarbon radicals. These results are interpreted in terms of steric hindrances to the association of QAS with zinc rodanide complexes created by the large size of the Zn(SCN)42− anion.
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页码：1673 / 1677
页数：4
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