Evidence for Hydrogen Bonding in Solution of 1-Ethyl-3-methylimidazolium Halides, and its Implications for Room-temperature Halogenoaluminate(III) Ionic Ligands

DOI: 10.1039/DT9940003405

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 3405 - 3414 (1994)

Update date:2022-08-16

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Authors:

Avent, Anthony G.

Chaloner, Penelope A.

Day, Martin P.

Seddon, Kenneth R.

Welton, Thomas

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Article abstract of DOI:10.1039/DT9940003405

Multinuclear NMR spectroscopy and conductivity measurements showed that the 1-ethyl-3-methylimidazolium cation, (1+), not only forms strong hydrogen bonds (using all three ring protons H², H⁴ and H⁵) with halide ions in polar molecular solvents (e.g. ethanenitrile) and ionic liquids, but that it exists in a quasi-molecular state, X, in non-polar solvents (e.g. trichloro- and dichloromethane), showing a conventional aromatic stacking phenomenon.

Full text of DOI:10.1039/DT9940003405

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