1-Methyl-3-(2-oxo-2H-chromen-3-yl)-1H-imidazol-3-ium picrate

Acta Crystallographica Section E. 2013;69(6):o839-o839 DOI 10.1107/S1600536813011690


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Journal Title: Acta Crystallographica Section E

ISSN: 1600-5368 (Print)

Publisher: International Union of Crystallography

LCC Subject Category: Science: Chemistry

Country of publisher: United Kingdom

Language of fulltext: English

Full-text formats available: PDF, HTML



Nguyen Van Tuyen
Le Tuan Anh
Alexey A. Festa
Leonid G. Voskressensky
Victor N. Khrustalev


Blind peer review

Editorial Board

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Time From Submission to Publication: 3 weeks


Abstract | Full Text

The title salt, C13H11N2O2+·C6H2N3O7−, is the unexpected product of a domino reaction of 3-cyanomethyl-1-methylimidazolium chloride with salicylic aldehyde in the presence of picric acid. In the cation, the 1H-imidazole ring is twisted by 63.2 (1)° from the 2H-chromen plane. In the crystal, cations and anions are alternately stacked along the a axis through π–π stacking interactions between the almost parallel aromatic rings [centroid–centroid distances = 3.458 (2) and 3.678 (2) Å]. The stacks are further linked by C—H...O hydrogen bonds into a two-tier layer parallel to (001).