Communication: X-ray scattering from ionic liquids with pyrrolidinium cations

Cherry S. Santos, N. Sanjeeva Murthy, Gary A. Baker, Edward W. Castner

Research output: Contribution to journalArticlepeer-review

136 Scopus citations


We report the structure functions obtained from x-ray scattering experiments on a series of four homologous ionic liquids. The ionic liquids are 1-alkyl-1-methylpyrrolidinium cations paired with the bis(trifluoromethylsulfonyl)amide anion, with alkyl chain lengths of n = 4, 6, 8, and 10. The structure functions display two intense diffraction peaks for values of the scattering vector q in the range from 0.6 to 1.5 -1 for all samples. Both diffraction peaks shift to lower values of q for increasing temperature. First sharp diffraction peaks are observed in the structure functions for q 0.5 -1 for liquids with n = 6, 8, and 10.

Original languageEnglish (US)
Article number121101
JournalJournal of Chemical Physics
Issue number12
StatePublished - Mar 28 2011

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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