Thiocyanate Functionalised Ionic Liquids: Synthesis, Characterisation and Reactivity

The reaction of chloromethyl thiocyanate with 1‐methylimidazole affords the imidazolium salt, 1‐thiocyanomethyl‐3‐methylimidazolium chloride, [C1SCNmim]Cl (1a). Exchange of the chloride anion in 1a by [PF6]–, [BF4]–, [Tf2N]– or [AuCl4]– affords salts 1b, 1c, 1d and 1e, respectively. Salts [C1SCNmim]...

Full description

Saved in:
Bibliographic Details
Published in:European Journal of Inorganic Chemistry 2007-01, Vol.2007 (2), p.279-284
Main Authors: Zhao, Dongbin, Fei, Zhaofu, Han Ang, Wee, Scopelliti, Rosario, Dyson, Paul J.
Format: Article
Language:English
Subjects:
Imidazolium salts
Ionic liquids
Palladium complexes
Thiocyanate
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The reaction of chloromethyl thiocyanate with 1‐methylimidazole affords the imidazolium salt, 1‐thiocyanomethyl‐3‐methylimidazolium chloride, [C1SCNmim]Cl (1a). Exchange of the chloride anion in 1a by [PF6]–, [BF4]–, [Tf2N]– or [AuCl4]– affords salts 1b, 1c, 1d and 1e, respectively. Salts [C1SCNmim][BF4] (1c) and [C1SCNmim][Tf2N] (1d) melt below 100 °C and can therefore be classified as ionic liquids. The reaction of 1a with PdCl2 affords [C1SCNmim]2[PdCl4] (2a), whereas 1c reacts with PdCl2 to form the complex [PdCl2{C1SCNmim}2][BF4]2 (2c). In the presence of HNO3 both 1a and 1c react with PdCl2 with the loss of HCN to form a sulfide‐bridged palladium dimer [PdCl2{C1Smim}]2 (3). The structures of 1a, 1e, 2a and 3 have been determined in the solid state by single‐crystal X‐ray diffraction. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.200600737