Abstract
The crystal structure of l,2-dimethyl-3-propylimidazoIium chloride (DMPICl) reveals the formation of hydrogen bonds between the ring, methyl, and methylene hydrogens and the chloride ion. Although the aromatic rings are found in stacks, aromatic-aromatic interactions are precluded by the 6.98 Å distance between the rings. From IR and1HNMR spectroscopies, it is determined that only the hydrogen bonds between the ring hydrogens and the chloride ion persist in the room-temperature molten salts obtained from combining DMPIC1 with AlCl3.
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Scordilis-Kelley, C., Robinson, K.D., Belmore, K.A. et al. Evidence for hydrogen bonds in 1,2-dimethyl-3-propylimidazolium chloride and its chloroaluminate molten salts. Journal of Crystallographic and Spectroscopic Research 23, 601–606 (1993). https://doi.org/10.1007/BF01228772
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DOI: https://doi.org/10.1007/BF01228772