title: Redetermination of 3-(ammonio-meth-yl)pyridinium dichloride.
abstract: The crystal structure of the title compound, C(6)H(10)N(2) (2+)·2Cl(-), has been reported previously in the non-standard setting P2(1)/a [Genet (1965 ▶). Bull. Soc. Fr. Miner. Crist.88, 463-470], with an R value of 0.16. The current redetermination improves significantly the precision of the geometric parameters. In the crystal packing, cations and anions are linked by inter-molecular N-H⋯Cl and C-H⋯Cl hydrogen bonds into a three-dimensional network.
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Wen-Xian
authors.initials: WX
authors.lastname: Liang
authors.forename: Gang
authors.initials: G
authors.lastname: Wang
authors.forename: Zhi-Rong
authors.initials: ZR
authors.lastname: Qu