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2,6-Dimethyl­pyridinium bromide

The asymmetric unit of the title salt, C(7)H(10)N(+)·Br(−), comprises two 2,6-dimethyl­pyridinium cations and two bromide anions. One cation and one anion are situated in general positions, while the other cation and the other anion lie on a crystallographic mirror plane parallel to (010). Each pair...

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Detalles Bibliográficos
Autores principales: Haddad, Salim F., Ali, Basem F., Al-Far, Rawhi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3470347/
https://www.ncbi.nlm.nih.gov/pubmed/23125760
http://dx.doi.org/10.1107/S1600536812039578
Descripción
Sumario:The asymmetric unit of the title salt, C(7)H(10)N(+)·Br(−), comprises two 2,6-dimethyl­pyridinium cations and two bromide anions. One cation and one anion are situated in general positions, while the other cation and the other anion lie on a crystallographic mirror plane parallel to (010). Each pair of ions inter­act via N—H⋯Br and C—H⋯Br hydrogen bonding, generating motifs depending on the cation and anion involved. Thus, the cation and the anion on the mirror plane generate infinite chains along the c axis, while the other ionic pair leads to sheets parallel to the ac plane. In the overall crystal packing, both motifs alternate along the b axis, with a single layer of the chain motif sandwiched between two double layers of the sheet motif. The sheets and chains are further connected via aryl π–π inter­actions [centroid–centroid distances = 3.690 (2) and 3.714 (2) Å], giving a three-dimensional network.