title: 1,12-Bis(2-carboxy-phen-yl)-5,8-dioxa-2,11-diaza-dodecane-2,11-diium dichloride methanol solvate.
abstract: In the title salt hydrate, C(22)H(30)N(2)O(6) (2+)·2Cl(-)·CH(4)O, the dication adopts a U-shaped conformation whereby the benzene rings are splayed out from the chain linking them. All components of the asymmetric unit are linked into a cohesive entity by a combination of O-H⋯Cl(-), N(+)-H⋯Cl(-) and N(+)-H⋯O charge-assisted hydrogen-bonding inter-actions. The assemblies thus formed are linked into supra-molecular helical chains along [010] via C-H⋯O contacts. The resulting chains are, in turn, consolidated into the three-dimensional crystal structure by C-H⋯π contacts.
authors.forename: Samuel
authors.initials: S
authors.lastname: Johnson
authors.forename: Ghezai T
authors.initials: GT
authors.lastname: Musie
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink