title: Bis(3-methyl-pyridinium) tetra-(chlorido/bromido)cuprate(II).
abstract: The structure of the title salt, (C(6)H(8)N)(2)[CuCl(3.4)Br(0.6)], consists of two 3-methyl-pyridinium cations and a distorted tetra-hedral [CuCl(3.4)Br(0.6)](2-) dianion. Substitutional disorder with Br is exhibited for three of the Cl atoms of the anion, giving a mixed chloride/bromide cuprate(II) anion. In the crystal, inter-molecular N-H⋯Cl hydrogen bonds link two cations to one anion, forming a three-ion aggregate. These are connected into a supra-molecular chain along the b axis via π-π inter-actions between the pyridinium rings [centroid-centroid distance = 3.743 (3) Å].
authors.forename: Young-Inn
authors.initials: YI
authors.lastname: Kim
authors.forename: Hyun-Soo
authors.initials: HS
authors.lastname: Lim
authors.forename: Sung Kwon
authors.initials: SK
authors.lastname: Kang