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. 2013 May 4;69(Pt 6):m302.
doi: 10.1107/S1600536813011884. Print 2013 Jun 1.

2-Amino-5-bromo-pyridin-1-ium (2-amino-5-bromo-pyridine-κN (1))trichloridozincate

Fitriani  1 , Kanidtha Hansongnern, Nararak Leesakul, Chaveng Pakawatchai, Saowanit Saithong
Affiliations

2-Amino-5-bromo-pyridin-1-ium (2-amino-5-bromo-pyridine-κN (1))trichloridozincate

Fitriani et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The structure of the title salt, (C5H6BrN2)[ZnCl3(C5H5BrN2)], consists of discrete 2-amino-5-bromo-pyridin-1-ium cations and distorted tetra-hedral (2-amino-5-bromo-pyridine)-tri-chlorido-zincate anions. In the crystal, the complex anions and cations are linked via N-H⋯Cl hydrogen bonds into layers parallel to (101). Short Br⋯Cl contacts of 3.4239 (11) and 3.4503 (12) Å are observed, as well as π-π stacking inter-actions between the pyridine and pyridinium rings, with alternating centroid-to-centroid distances of 3.653 (2) and 3.845 (2) Å.

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Figures

Fig. 1.
Fig. 1.
The molecular entities of cation and anion in the structure of [C5H6BrN2]+.[ZnCl3(C5H5BrN2)]-, drawn with anisotropic displacement ellipsoids at the 30% probability level.
Fig. 2.
Fig. 2.
The inter- and intra-molecular hydrogen bonding interactions in [C5H6BrN2]+.[ZnCl3(C5H5BrN2)]-, as viewed down the a axis.
Fig. 3.
Fig. 3.
The Br···Cl short contacts in [C5H6BrN2]+.[ZnCl3(C5H5BrN2)]-, as viewed down the a axis [symmetry code: (vi) -x + 2, -y, -z].
Fig. 4.
Fig. 4.
The one-dimensional inter-molecular π–π stacking in [C5H6BrN2]+.[ZnCl3(C5H5BrN2)]- [symmetry codes: (iv) x - 1/2, -y + 1/2, z + 1/2; (v) x + 1/2, -y + 1/2, z + 1/2).
See this image and copyright information in PMC

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