Specific ion effects in non-aqueous solvents: The case of glycerol carbonate

被引：13
|
作者：
Sarri, Filippo [1 ,2 ]
Tatini, Duccio [1 ,2 ]
Tanini, Damiano [1 ,2 ]
Simonelli, Matteo [1 ,2 ]
Ambrosi, Moira [1 ,2 ]
Ninham, Barry W. [3 ]
Capperucci, Antonella [1 ,2 ]
Dei, Luigi [1 ,2 ]
Lo Nostro, Pierandrea [1 ,2 ]
机构：
[1] Univ Florence, Dept Chem Ugo Schiff, Via Lastruccia 3, I-50019 Florence, Italy
[2] Univ Florence, CSGI, Via Lastruccia 3, I-50019 Florence, Italy
[3] Australian Natl Univ, Res Sch Phys Sci & Engn, Dept Appl Math, Canberra, ACT 0200, Australia
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2018年 / 266卷
关键词：
Hofmeister series; Specific ion effect; Ion pairs; Glycerol carbonate; THERMODYNAMIC PROPERTIES; 1,2-GLYCEROL CARBONATE; CHEMICAL-SHIFTS; WATER; SOLVATION; HYDROGEN; LIQUIDS; NMR; ELECTROLYTES; SOLUBILITY;
D O I：
10.1016/j.molliq.2018.06.120
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：
The effect of eight potassium salts (KF, K3PO4, KOCN, K2CO3, MCI, K2SO4, KBr and KI) on glycerol carbonate (GC) is studied through NMR, DSC, solubility and ATR-FTIR experiments. From the solubility data, the main thermodynamic functions of solution and solvation are estimated, and the mean molal activity coefficients are calculated. The results suggest that the capability of an anion to establish hydrogen bonds with the solvent molecules (or behave as a base, as in the case of fluoride, phosphate, cyanate and carbonate) is the most important structural feature that determines its effects on the solvent structure. On the other hand potassium iodide behaves in an anomalous way, due to the large polarizability of the anion that can form non-electrostatic, van der Waals dispersive intermolecular interactions. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：711 / 717
页数：7
相关论文
共 50 条
12345