The Mg2+ ion as a template for the synthesis of planar nitrogen-donor macrocyclic ligands: pentagonal bipyramidal MgII complexes
Abstract
Pentagonal bipyramidal complexes, [Mg(macro-cycle)(H2O)2]2+, containing planar pentadentate nitrogen-donor macrocyclic ligands, are formed in good yield in hydroxylic solvents by the template condensation of 2,6-diacetylpyridine with a linear tetramine in the presence of Mg2+