Speciation of chloroindate(III) ionic liquids

被引：42

作者：

Apperley, David C. ^{[1
]}

Hardacre, Christopher ^{[2
]}

Licence, Peter ^{[3
]}

Murphy, Richard W. ^{[2
]}

Plechkova, Natalia V. ^{[2
]}

Seddon, Kenneth R. ^{[2
]}

Srinivasan, Geetha ^{[2
]}

Swadzba-Kwasny, Malgorzata ^{[2
]}

Villar-Garcia, Ignacio J. ^{[3
]}

机构：

[1] Univ Durham, Dept Chem, Durham DH1 3LE, England

[2] Queens Univ Belfast, QUILL, Belfast BT9 5AG, Antrim, North Ireland

[3] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England

来源：

DALTON TRANSACTIONS | 2010年 / 39卷 / 37期

基金：

英国工程与自然科学研究理事会;

关键词：

NUCLEAR-MAGNETIC-RESONANCE; SURFACE-TENSION; RAMAN-SPECTRA; IN-VACUO; CHLOROALUMINATE; CHLORIDE; INDIUM;

D O I：

10.1039/c0dt00497a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A range of chloroindate(III) ionic liquid systems was prepared by mixing of 1-alkyl-3-methylimidazolium chloride with indium(III) chloride in various ratios, expressed as the mol fraction of indium(III) chloride, chi(InCl3). For chi(InCl3) <= 0.50, the products were liquids, whereas for chi(InCl3) > 0.50, the products were biphasic (suspensions of a solid in an ionic liquid). Speciation of these chloroindate(III) systems was carried out using a wide range of techniques: differential scanning calorimetry (DSC), polarised optical microscopy (POM), liquid-state and solid-state In-115 NMR spectroscopy, X-ray photoelectron spectroscopy (XPS) and extended X-ray absorption fine structure (EXAFS). Ionic liquids prepared using an excess of the organic chloride (chi(InCl3) < 0.5) contained [InCl6](3-), [InCl5](2-) and [InCl4](-) anions, in proportions dependent on the chi(InCl3) value. Equimolar mixtures yielded single compounds: 1-alkyl-3-methylimidazolium tetrachloroindates(III). Systems containing an excess of indium(III) chloride (chi(InCl3) > 0.5) contained indium(III) chloride powder suspended in a neutral tetrachloroindate ionic liquid.

引用

页码：8679 / 8687

页数：9

共 44 条

[1] A FAST-ATOM-BOMBARDMENT MASS-SPECTROMETRIC STUDY OF ROOM-TEMPERATURE 1-ETHYL-3-METHYLIMIDAZOLIUM CHLOROALUMINATE(III) IONIC LIQUIDS - EVIDENCE FOR THE EXISTENCE OF THE DECACHLOROTRIALUMINATE(III) ANION [J].