A Review of Solvate Ionic Liquids: Physical Parameters and Synthetic Applications

Abstract

Solvate Ionic Liquids (SILs) are a relatively new class of ionic liquids consisting of a coordinating solvent and salt, that give rise to a chelate complex with very similar properties to ionic liquids. Herein is the exploration of the reported Kamlet-Taft parameters, Gutmann Acceptor numbers and the investigation of chelating effects through NMR spectroscopy of multiple atomic nuclei. These properties are related to the application of SILs as reaction media for organic reactions. This area is also reviewed here, including the implication in catalysis for the Aldol and Kabachnik-Fields reactions and electrocyclization reactions such as Diels-Alder and [2+2] cycloaddition. Solvate ILs exhibit many interesting properties and hold great potential as a solvent for organic transformations.

Redox-active glyme–Li tetrahalogenoferrate(iii) solvate ionic liquids for semi-liquid lithium secondary batteries

“…The glyme-based SILs also nd applications in organic and material chemistry, [35][36][37] and there has also been studies of the solid-liquid interface [38][39][40] and solvent polarities. [41][42][43] Our group has extended the SIL concept further and was recently successful in developing a redox-active SIL, [Li(G3)][FeBr 4 ], comprised solely of complex ions, that could serve as a "two-inone" functional catholyte for semi-liquid lithium secondary batteries; the [Li(G3)] + complex cation serves as a Li + ion carrier, while the [FeBr 4 ] À complex anion undergoes a redox reaction as the catholyte. 44 Here, the weakly coordinating properties of the [FeBr 4 ] À complex anion ensures strong ligand-Li + ion interactions and a high degree of dissociation, as well as a relatively low melting point (T m ), all of which have been reported as critical in yielding SILs.…”

Heterogeneous Catalysis with the Participation of Ionic Liquids

“…An example of the structural evolution of particular generations of ionic liquids is presented in Figure 2. An intensive development can be observed among ionic liquids themselves, as well as among the compounds that are not altogether regarded as ionic liquids such as deep eutectic solvents [35][36][37] or solvate ionic liquids [38]. Currently, the diversity of the application directions is very large, beginning from separation techniques [39] through the production and storage of energy [40,41], different types of biotransformations [42,43], organocatalysis [44], and ending with pharmaceuticals [45] and space technology [46].…”

Poly (Ionic Liquids) Functionalized Magnetic Nanoparticles as Efficient Adsorbent for Determination of Pyrethroids from Environmental Water Samples by GC‐MS

“…As adsorbents, ILs can interact with different analytes thanks to their tunable structure. Generally speaking, the stronger the acidity of the ionic liquid anion conjugate acid, the more hydrophobic the ionic liquid is, and the stronger the enrichment ability of the hydrophobic analytes from aqueous phase . We select 1‐butyl‐3‐vinylimidazolium bis((trifluorompropyl)sulfonyl)imide ([VBIm]NTf 2 ) modified MNPs as the adsorbent, whose anion conjugate acid, HNTf 2 , has strong acidity (pK a (DME)=−11.9) .…”

“…Generally speaking, the stronger the acidity of the ionic liquid anion conjugate acid, the more hydrophobic the ionic liquid is, and the stronger the enrichment ability of the hydrophobic analytes from aqueous phase. [16] We select 1-butyl-3-vinylimidazolium bis ((trifluorompropyl)sulfonyl)imide ([VBIm]NTf 2 ) modified MNPs as the adsorbent, whose anion conjugate acid, HNTf 2 , has strong acidity (pK a (DME) = À 11.9). [17] As the imidazolium cation in [VBIm]NTf 2 and the benzene in pyrethroids both possess π bonds, host-guest π-π staking and hydrophobic interactions should occur in the meantime, [18] which endow [VBIm]NTf 2 modified MNPs with satisfactory extraction efficiency.…”