As the applications incorporating ionic liquids increases, the need to understand the interactions governing their unique properties also increases.  To date, it is not a simple matter of picking two ions and predicting their physical properties.  The focus of this study is the thermal conformational transitions of a series of N,N'-dialkylpyrrolidinium and N,N'-dialkylpiperidinium iodide salts by single crystal XRD, variable temperature Raman spectroscopy and computational methods.   XRD data provides a starting point for studying the cation-anion interaction present in an ionic liquid.  By using variable temperature Raman data linked with computational data, one can follow the thermal conformation changes that the cation undergoes.  With this data, a diagram of the conformational transitions the cation goes through from solid state to liquid state can be obtained.  This information will provide much need insight into the thermal behavior of ionic liquids and will help with predicting the thermal behavior of other ILs.

Exploring thermal conformation transitions of <i>N,N'</i>-alkylpyrrolidinium and <i>N,N'</i>-alkylpiperidinium iodide salts

243rd National Meeting (2012)

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Exploring thermal conformation transitions of N,N'-alkylpyrrolidinium and N,N'-alkylpiperidinium iodide salts