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. 2020 Jun 9;5(Pt 6):x200768.
doi: 10.1107/S2414314620007683. eCollection 2020 Jun.

1-Benzyl-3-methyl-imidazolium bromide

Tim Peppel  1 , Christoph Wulf  1 , Anke Spannenberg  1
Affiliations

1-Benzyl-3-methyl-imidazolium bromide

Tim Peppel et al. IUCrdata. .

Abstract

The title compound, (BenzMIm)Br (BenzMIm=1-benzyl-3-methyl-imidazo-l-ium), C11H13N2 +·Br-, was obtained as single crystals directly from a pure and liquid sample of the compound over several weeks. The mol-ecular structure of (BenzMIm)Br consists of separated bromide anions and 1-benzyl-3-methyl-imidazolium cations connected via short C-H⋯Br contacts. The compound exhibits a relatively low melting point (m.p. = 72°C) and is a supercooled, highly viscous transparent liquid at ambient conditions. The title compound crystallizes with two unique ion pairs in the asymmetric unit of the orthorhombic unit cell.

Keywords: crystal structure; hydrogen bond; imidazolium; ionic liquid.

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Figures

Figure 1
Figure 1
Mol­ecular structure of the title compound. Displacement ellipsoids correspond to 30% probability.
See this image and copyright information in PMC

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