Crystal structure of 1,1'-(pyridine-2,6-di-yl)bis-[ N-(pyridin-2-ylmeth-yl)methanaminium] dichloride dihydrate

Layachi Merabet; Marine Tassé; Sonia Mallet-Ladeira; Lakhemici Kaboub; Isabelle Malfant

doi:10.1107/S205698902101183X

Crystal structure of 1,1'-(pyridine-2,6-di-yl)bis-[ N-(pyridin-2-ylmeth-yl)methanaminium] dichloride dihydrate

Acta Crystallogr E Crystallogr Commun. 2021 Nov 16;77(Pt 12):1296-1298. doi: 10.1107/S205698902101183X. eCollection 2021 Dec 1.

Authors

Layachi Merabet^{1

2}, Marine Tassé¹, Sonia Mallet-Ladeira^{3

1}, Lakhemici Kaboub², Isabelle Malfant¹

Affiliations

¹ Laboratoire de Chimie de Coordination, UPR-CNRS 8241, 205 route de Narbonne, 31077 Toulouse cedex, France.
² Laboratory of Chemistry, Molecular Engineering and Nanostructures, Department of Chemistry, Faculty of Sciences, University of Ferhat Abbas-Sétif -1, 19000 Sétif, Algeria.
³ Institut de Chimie de Toulouse UAR-CNRS 2599, 118 route de Narbonne, 31062 Toulouse Cedex 09, France.

Abstract

In the title compound, C₁₉H₂₃N₅ ²⁺·2Cl^-·2H₂O, the two pyridine side arms are not coplanar, with the terminal pyridine rings subtending a dihedral angle of 26.45 (6)°. In the crystal, hydrogen bonds, inter-molecular C-H⋯Cl contacts and a weak C-H⋯O inter-action connect the mol-ecule with neighbouring chloride counter-anions and lattice water mol-ecules. The crystal packing also features by π-π inter-actions with centroid-centroid distances of 3.4864 (12) and 3.5129 (13) Å.

Keywords: crystal structure; hydrogen bonding; π–π interactions.