3-(Ammonio-meth-yl)pyridinium dibromide

In the title salt, C(6)H(10)N(2) (2+)·2Br(-), the non-H atoms of the 3-methyl-pyridinium unit of the cation are almost coplanar (r.m.s. deviation = 0.0052 Å). In the crystal, the dications and Br anions are linked by a combination of six hydrogen bonds, viz. one N(py)-H⋯Br, two C-H⋯Br and three H(2)...

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Published inActa crystallographica. Section E, Structure reports online Vol. 68; no. Pt 11; p. o3066
Main Authors Ali, Basem F, Al-Far, Rawhi, Haddad, Salim F
Format Journal Article
LanguageEnglish
Published United States International Union of Crystallography 01.11.2012
Subjects
Organic Papers
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Summary:In the title salt, C(6)H(10)N(2) (2+)·2Br(-), the non-H atoms of the 3-methyl-pyridinium unit of the cation are almost coplanar (r.m.s. deviation = 0.0052 Å). In the crystal, the dications and Br anions are linked by a combination of six hydrogen bonds, viz. one N(py)-H⋯Br, two C-H⋯Br and three H(2)N-H⋯Br, into supra-molecular layers, parallel to the bc plane, composed of alternating R(2) (4)(10) and R(2) (4)(8) loops. Weak π-π inter-actions between cationic rings with centroid-centroid distances of 3.891 (2) Å are also observed.
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ISSN:1600-5368
1600-5368
DOI:10.1107/S1600536812040937