title: Crystal structure of (±)-[trans-cyclo-hexane-1,2-diylbis(aza-nedi-yl)]di-phospho-nium dibromide dichloro-methane disolvate.
abstract: The cation of the title solvated salt, C42H42N2P2 (2+)·2Br(-)·2CH2Cl2, lies on a crystallographic twofold rotation axis. The 1,2-di-amino-cyclo-hexane fragment has a chair conformation with two N atoms in a transoid conformation [N-C-C-N = 163.4 (2)°]. In the crystal, the cations are linked to the anions by N-H⋯Br and C-H⋯Br hydrogen bonds, forming a chain structure along the c axis. The di-chloro-methane mol-ecule takes part in the hydrogen-bond network through C-H⋯π and C-H⋯Br inter-actions.
authors.affiliation: Centro de Investigaciónes Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001, Col. Chamilpa, CP 62209, Cuernavaca Mor., Mexico.
authors.forename: Aurora
authors.initials: A
authors.lastname: Rodríguez Álvarez
authors.affiliation: Centro de Investigaciónes Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001, Col. Chamilpa, CP 62209, Cuernavaca Mor., Mexico.
authors.forename: Hugo
authors.initials: H
authors.lastname: Tlahuext
authors.affiliation: Centro de Investigaciónes Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad No. 1001, Col. Chamilpa, CP 62209, Cuernavaca Mor., Mexico.
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Grévy
keywords: C—H⋯Br and C—H⋯π inter­actions; crystal structure; di­phospho­nium ligands; trans-di­amino­cyclo­hexa­ne