title: 1,1'-Dimethyl-4,4'-bipyridinium bis-(tetra-fluorido-borate).
abstract: In the title compound, C(12)H(14)N(2) (2+)·2BF(4) (-), the cation has a centre of symmetry at the mid-point of the central C-C bond. π-π inter-actions, with a shortest atom-to-atom distance of 3.757 (4) Å, extend the crystal structure into a one-dimensional supra-molecular chain.
authors.forename: Fan
authors.initials: F
authors.lastname: Yang
authors.forename: Jian-Cheng
authors.initials: JC
authors.lastname: Deng
authors.forename: Zhi-Gang
authors.initials: ZG
authors.lastname: Li
authors.forename: Jing-Wei
authors.initials: JW
authors.lastname: Xu