Synthesis and crystal structure of a new pyridinium bromide salt: 4-methyl-1-(3-phenoxypropyl)pyridinium bromide

Acta Crystallographica Section E: Crystallographic Communications

Meshal A. Almehmadi¹  Mohamed R. Aouad¹  Musa A. Said¹  Mouslim Messali¹  David L. Hughes² 

[1] Department of Chemistry, Taibah University, 30002, Al-Madina Al-Mounawara, Saudi Arabia;School of Chemistry, University of East Anglia, University Plain, Norwich NR4 7TJ, United Kingdom;

关键词: crystal structure;    ionic liquids;    pyridinium salts;    halide;    hydrogen bonding;    π–π interactions;   

DOI  :  10.1107/S2056989017015481

来源: DOAJ

【 摘 要 】

In the cation of the title molecular salt, C15H18NO+·Br−, the pyridinium and phenyl rings are inclined to one another by 11.80 (8)°. In the crystal, the Br− anion is linked to the cation by a C—H...Br hydrogen bond. The cations stack along the b-axis direction and are linked by further C—H...Br interactions, and offset π–π interactions [intercentroid distances = 3.5733 (19) and 3.8457 (19) Å], forming slabs parallel to the ab plane. The effectsof the C—H...X− interaction on the NMR signals of the ortho- and meta-pyridinium protons in a series of related ionic liquids, viz. 4-methyl-1-(4-phenoxybutyl)pyridin-1-ium salts, are reported and discussed.

【 授权许可】

Unknown