trans-(577121414-Hexamethyl-14811-tetra­aza­cyclo­tetra­deca-411-diene-κ4 NN′N′′N′′′)bis­(nitrito-κN)cobalt(III) perchlorate hemihydrate

摘要

The asymmetric unit of the title Co^III complex, [Co(NO2)2(C16H32N4)]ClO4·0.5H2O, comprises two complex cations, two perchlorate anions and a water mol­ecule of crystallization. The Co^III atoms exist within distorted octa­hedral N6 geometries defined by four N atoms of the macrocycle ligand and trans-N atoms derived from the nitrite anions. Systematic variations in the Co—N bond lengths are correlated with the presence of intra­molecular N—H⋯O(nitrite) hydrogen bonds. In the crystal, water-O—H⋯O(perchlorate) hydrogen bonds, involving one of the independent perchlorate anions only, lead to supra­molecular chains along the b-axis direction. The three-dimensional architecture is consolidated by numerous C—H⋯O inter­actions. The crystal studied was a non-merohedral, racemic twin.