4-Amino-(1-methylphenyl)pyridinium bromide

Abstract

In the cation of the title compound, C12H13N2+·Br−, the dihedral angle between the pyridine and benzene rings is 80.0 (1)°. The anions and cations are connected by inter­molecular N—H⋯Br hydrogen bonds, forming one‐dimensional chains along [100].

4-Hydroxy-1,2,6-trimethylpyridinium chloride monohydrate

“…The corresponding bond lengths and angles of the cation in (I) are comparable with those of related structures reported earlier (Seethalakshmi et al, 2006a(Seethalakshmi et al, ,b,c, 2007.…”

“…For related structures, see: Seethalakshmi et al (2006aSeethalakshmi et al ( ,b,c, 2007. For related compounds, see: Dhanuskodi et al (2006Dhanuskodi et al ( , 2008.…”

4-Amino-(1-ethoxycarbonylmethyl)pyridinium iodide

“…1. The bond lengths and angles within the pyridinium ring are normal and comparable with those reported for related structures (Seethalakshmi et al, 2006;Sundar et al, 2004aSundar et al, ,b, 2005Sundar et al, 2006Sundar et al, , 2006a. The N1-C6-C7-O1, C6-C7-O1-C8 and C7-O1-C8-C9 torsion angles in (I) ( Table 1) indicate that the ethoxycarbonylmethyl group is in an extended conformation.…”

2-Amino-(1-methylphenyl)pyridinium bromide

“…1. The bond lengths and angles within the pyridinium ring are comparable with those reported for related structures (Seethalakshmi et al, 2006(Seethalakshmi et al, , 2006a. In (I), the dihedral angle between the planes of the pyridine and benzene rings is 89.2 (1) .…”