Thermochemistry of solvation of 18-crown-6 ether in binary methanol-acetonitrile solvents

被引：7

作者：

Kuz'mina, I. A. ^{[1
]}

Usacheva, T. R. ^{[1
]}

Sharnin, V. A. ^{[1
]}

Volkova, M. A. ^{[1
]}

机构：

[1] Ivanovo State Univ Chem & Technol, Ivanovo 153460, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2013年 / 87卷 / 07期

关键词：

methanol-acetonitrile solvents; calorimetry of dissolution; 18-crown-6; ether; solvation; enthalpy; COMPLEXES; CROWN; ENTHALPIES; MIXTURES; WATER;

D O I：

10.1134/S0036024413070182

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Heat effects of the dissolution of 18-crown-6 ether (18C6) over a wide range of compositions of mixed methanol-acetonitrile solvents are determined via calorimetry at 298.15 K. It is found that passing from methanol to acetonitrile to x (AN) = 0.6 mole fraction is accompanied by a sharp increase in the exothermicity of 18C6 solvation. It is concluded that a further increase in the aprotic component of a binary mixture leads to no appreciable changes in the enthalpy of solvation of the macrocycle.

引用

页码：1076 / 1078

页数：3

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