1-Hydroxyethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide CAS 174899-86-6

Product Name: 1-Hydroxyethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide

CAS Number: 174899-86-6

Description

1-Hydroxyethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide is a functionalized ionic liquid (IL) that combines a 1-hydroxyethyl-3-methylimidazolium cation with a bis(trifluoromethanesulfonyl)imide ([TFSI]− or [NTf2​]−) anion. This IL is notable for the presence of a reactive hydroxyl (OH) group on the cation, offering a site for further chemical modification, and the [TFSI]− anion, which typically imparts properties such as hydrophobicity (water immiscibility), high thermal stability, a wide electrochemical window, and low viscosity compared to some other ILs. It generally exists as a liquid at room temperature.

Properties

Property	Value
Molecular Formula	C8​H11​F6​N3​O5​S2​
Molecular Weight	$411.31\text{ g/mol}$
Appearance	Typically a colorless to pale yellow or amber viscous liquid
Ionic Nature	Organic salt, Ionic Liquid
Common Abbreviation(s)	$[HOEMIM][TFSI]$, [HOEMIM][NTf2​], [C2​OHMIM][TFSI]
Key Characteristics	Functional hydroxyl group, hydrophobic, high thermal stability, wide electrochemical window

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