meso-5,7,7,12,14,14-Hexamethyl-1,4,8,11-tetraazacyclotetradeca-4,11-diene)nickel(II) dibromidedihydrate

The asymmetric unit of the title compound, [Ni(C16H32N4)]Br-2 center dot 2H(2)O, consists of one half [Ni(C16H32N4)](2+) cation, one Br anion and one water molecule of crystallization. The Ni II ion lies on an inversion centre in a square-planar environment formed by the four macrocyclic ligand N atoms. In the crystal structure, the cations, anions and water molecules are linked via intermolecular N-H center dot center dot center dot Br and O-H center dot center dot center dot Br hydrogen bonds, forming discrete chains with set-graph motif D(2)D-2(2)(7)D-2(1)(3)D-3(2)(8). The water molecules and Br- ions are linked with set-graph motif R-4(2)(8).