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Updated: Mar 25, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
Crystal structure of a methimazole-based ionic liquid
Jamie C Gaitor1, Manuel Sanchez Zayas1, Darrel J Myrthil1
1Department of Chemistry and Physics, Florida Gulf Coast University, Fort Myers, FL 33965, USA.
Abstract:
The structure of 1-methyl-2-(prop-2-en-1-ylsulfan-yl)-1H-imidazol-3-ium bromide, C7H11N2S(+)·Br(-), has monoclinic (P21/c) symmetry. In the crystal, the components are linked by N-H⋯Br and C-H⋯Br hydrogen bonds. The crystal structure of the title compound undeniably proves that methimazole reacts through the thione tautomer, rather than the thiol tautomer in this system.
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