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

Filippo Sarri; Duccio Tatini; Damiano Tanini; Matteo Simonelli; Moira Ambrosi; Barry W. Ninham; Antonella Capperucci; Luigi Dei; Pierandrea Lo Nostro

doi:10.1016/j.molliq.2018.06.120

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

Filippo Sarri, Duccio Tatini, Damiano Tanini, Matteo Simonelli, Moira Ambrosi, Barry W. Ninham, Antonella Capperucci, Luigi Dei, Pierandrea Lo Nostro^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The effect of eight potassium salts (KF, K₃PO₄, KOCN, K₂CO₃, KCl, 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.

Original language	English
Pages (from-to)	711-717
Number of pages	7
Journal	Journal of Molecular Liquids
Volume	266
DOIs	https://doi.org/10.1016/j.molliq.2018.06.120
Publication status	Published - 15 Sept 2018

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@article{abe7ec66ea7347078bf290a3b7a65da0,

title = "Specific ion effects in non-aqueous solvents: The case of glycerol carbonate",

abstract = "The effect of eight potassium salts (KF, K3PO4, KOCN, K2CO3, KCl, 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.",

keywords = "Glycerol carbonate, Hofmeister series, Ion pairs, Specific ion effect",

author = "Filippo Sarri and Duccio Tatini and Damiano Tanini and Matteo Simonelli and Moira Ambrosi and Ninham, {Barry W.} and Antonella Capperucci and Luigi Dei and {Lo Nostro}, Pierandrea",

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year = "2018",

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day = "15",

doi = "10.1016/j.molliq.2018.06.120",

language = "English",

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journal = "Journal of Molecular Liquids",

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TY - JOUR

T1 - Specific ion effects in non-aqueous solvents

T2 - The case of glycerol carbonate

AU - Sarri, Filippo

AU - Tatini, Duccio

AU - Tanini, Damiano

AU - Simonelli, Matteo

AU - Ambrosi, Moira

AU - Ninham, Barry W.

AU - Capperucci, Antonella

AU - Dei, Luigi

AU - Lo Nostro, Pierandrea

PY - 2018/9/15

Y1 - 2018/9/15

N2 - The effect of eight potassium salts (KF, K3PO4, KOCN, K2CO3, KCl, 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.

AB - The effect of eight potassium salts (KF, K3PO4, KOCN, K2CO3, KCl, 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.

KW - Glycerol carbonate

KW - Hofmeister series

KW - Ion pairs

KW - Specific ion effect

UR - http://www.scopus.com/inward/record.url?scp=85049448761&partnerID=8YFLogxK

U2 - 10.1016/j.molliq.2018.06.120

DO - 10.1016/j.molliq.2018.06.120

M3 - Article

SN - 0167-7322

VL - 266

SP - 711

EP - 717

JO - Journal of Molecular Liquids

JF - Journal of Molecular Liquids

ER -

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

Abstract

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