ISIS Neutron and Muon Source Data Journal

The role of hydrogen bonding for the formation of cation dimers in carboxy-functionalized ionic liquids

Abstract: The properties of ionic liquids (ILs) are governed by a subtle balance of Coulomb interactions, dispersion forces and hydrogen bonding. The latter has a particularly significant influence on the behaviour of those substances and can be divided into two main types: One occuring between a cation and an anion and another between ions of like-charge. In ILs, the hydrogen bonding between cations might not appear to be important. However, structural motifs involving hydrogen-bonded cation clusters were observed in the bulk liquid phase. In this study, we want to analyse the carboxy-functionalized IL N-carboxymethylpyridinium bis(trifluoromethanesulfonyl)azanide, which forms doubly hydrogen-bonded cation dimers already in the solid state. We ask whether this particularly strong hydrogen bond motif between ions of like-charge remains upon melting and how it behaves with increasing temperature.

Principal Investigator: Professor Ralf Ludwig
Experimenter: Dr Anne Strate
Local Contact: Dr Tristan Youngs
Experimenter: Miss Johanna Busch
Experimenter: Mr Loai Al Sheakh
Experimenter: Mr David Kotwica
Experimenter: Ms Lena Moehring

DOI: 10.5286/ISIS.E.RB2210087

ISIS Experiment Number: RB2210087

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Ralf Ludwig et al; (2022): The role of hydrogen bonding for the formation of cation dimers in carboxy-functionalized ionic liquids, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2210087

Data is released under the CC-BY-4.0 license.