Trans-Dichlorido(1,4,8,11-tetraazacyclotetradecane)manganese(III) tetrafluoridoborate

Abstract

In the title manganese(III) complex, [MnCl2(C10H 24N4)]BF4 or trans-[MnCl2(cyclam)] BF4 (cyclam is the tetra-dentate amine ligand 1,4,8,11-tetra- azacyclo-tetra-deca-ne), the MnIII ions occupy the center of a distorted octa-hedron coordinated by all four ligand nitro-gen donors in the macrobicyclic cavity and two chloride ions occupy the axial positions. Intra-molecular hydrogen bonding involving the coordinated chloride ions and the hydrogen atoms of the cyclam ligand is observed. Inter-molecular hydrogen bonding involving the tetrafluoridoborate anion and hydrogen atoms of the cyclam ligand leads to an infinite one-dimensional chain along the a axis. The tetra-fluoridoborate and inorganic units are linked by N - H⋯F hydrogen bonds. The structure may be compared with those of analogous compounds [MnCl2(cyclam)]ClO4 and [Mn(CN)2(cyclam)] ClO4.