title: N,N'-Bis(2-aza-niumylbenz-yl)ethane-1,2-diaminium tetra-chloride.
abstract: The title compound, C(16)H(26)N(4) (4+)·4Cl(-), is based on a fully protonated tetra-amine. In the cation, both benzene rings are connected by an all-trans chain, and the rings are almost parallel, with an angle between the mean planes of 8.34 (12)°. The benzene rings are arranged in such a way that the NH(3) (+) substituents are oriented cis with respect to the central chain. This arrangement is a consequence of multiple N-H⋯Cl hydrogen bonds, involving all N-H groups in the cation and the four independent Cl(-) anions. These contacts have strengths ranging from weak to strong (based on H⋯Cl separations), and generate a complex three-dimensional crystal structure with no preferential crystallographic orientation for the contacts.
authors.forename: Luis Ángel
authors.initials: LÁ
authors.lastname: Garza Rodríguez
authors.forename: Sylvain
authors.initials: S
authors.lastname: Bernès
authors.forename: Perla
authors.initials: P
authors.lastname: Elizondo Martínez
authors.forename: Blanca
authors.initials: B
authors.lastname: Nájera Martínez
authors.forename: Nancy
authors.initials: N
authors.lastname: Pérez Rodríguez