3-(1-Methyl-3-imidazolio) propanesulfonate: A Precursor to a Bronsted Acid Ionic Liquid

摘要

The title compound, C7H12N2O3S, is a zwitterion precursor to a Broensted acid ionic liquid with potential as an acid catalyst. The C-N-C-C torsion angle of 100.05 (8) deg allows the positively charged imidazolium head group and the negatively charged sulfonate group to interact with neighboring zwitterions, forming a C-H...O hydrogen-bonding network; the shortest among these interactions is 2.9512 (9) A. The C-H...O interactions can be described by graph-set notation as two R(2 over 2)(16) and one R(2 over 2)(5) hydrogen- bonded rings.