title: 1,1'-(Ethane-1,2-di-yl)bis-(1,4,7-triazonane).
abstract: In the centrosymmetric title compound (dtne), C(14)H(32)N(6), two 1,4,7-triaza-cyclo-nonane (tacn, or 1,4,7-triazonane) moieties are linked together each at an amino position by a single ethyl-ene spacer. The mol-ecular packing is supported by pairs of inter-molecular N-H⋯N hydrogen bonds, which form R(2) (2)(22) ring motifs and link the mol-ecules into infinite chains running parallel to the a axis.
authors.affiliation: Main Building, School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, Wales.
authors.forename: James C
authors.initials: JC
authors.lastname: Knight
authors.forename: Ian A
authors.initials: IA
authors.lastname: Fallis