title: Crystal structure of trans-bis-{4-bromo-N-[(pyridin-2-yl)-methyl-idene]aniline-κ(2) N,N'}di-chlorido-ruthenium(II).
abstract: In the title complex, [RuCl2(C12H9BrN2)2] or [RuCl2(PM-BrA)2] (PM-BrA = 4-bromo-N-(2'-pyridyl-methyl-ene)aniline), the Ru(II) cation is located on a centre of inversion and is surrounded by four N atoms of two PM-BrA ligands in the equatorial plane and by two Cl atoms in a trans axial arrangement, displaying a distorted octa-hedral coordination environment. Two C atoms in the benzene ring of the PM-BrA ligand are equally disordered over two sets of sites. The benzene and pyridine rings of the PM-BrA ligand are oriented at dihedral angles of 62.1 (10) and 73.7 (11)° under consideration of the two orientations of the disordered benzene ring. In the crystal, the complex mol-ecules are connected via C-H⋯Cl hydrogen-bonding inter-actions into a layered arrangement parallel (100). C-H⋯Br hydrogen bonding and weak aromatic π-π stacking inter-actions complete a three-dimensional supra-molecular network.
authors.affiliation: Department of Chemistry, Faculty of Science, Naresuan University, Muang, Phitsanulok, 65000, Thailand.
authors.forename: Kittipong
authors.initials: K
authors.lastname: Chainok
authors.affiliation: Department of Chemistry, Faculty of Science, Naresuan University, Muang, Phitsanulok, 65000, Thailand.
authors.forename: Filip
authors.initials: F
authors.lastname: Kielar
keywords: Schiff base ligand; crystal structure; ruthenium(II); π–π stacking