1.
Acta Crystallogr E Crystallogr Commun
; 74(Pt 4): 436-440, 2018 Apr 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-29765740
RESUMO
In the title mol-ecular salt, (C5H8N3)2[CoCl4], the cations are protonated at their pyridine N atoms and the anion is an almost regular tetra-hedron. The crystal structure consists of alternating inorganic layers, built from tetra-chlorido-cobaltate anions, and organic layers formed by protonated cations of 2,6-di-amino-pyridinium. The crystal packing is governed by C/N-Hâ¯Cl hydrogen-bonding inter-actions between the organic and the inorganic ions and Clâ¯Cl inter-actions. Moreover, the cations show a π-π stacking inter-action [inter-centroid distance = 3.763â (2)â Å]. The prevalence of these inter-actions is illustrated by an analysis of the three-dimensional Hirshfeld surface and by two-dimensional fingerprint plots.