Dicopper(II) complexes of chiral C2-symmetric diamino-bis(2-methylpyridyl) and diamino-bis(2-methylbenzimidazolyl) ligands

Reaction of the chiral ligands (1S,4S)-2,5-bis(6-methylpyridyl)-diazabicyclo[2.2.1]heptane (L1), and (1S,4S)-2,5-bis(2-methylbenzimidazolyl)-diazabicyclo[2.2.1]heptane (L2) with copper(II) acetate results in the hydroxo-bridged dicopper complexes [(L1)Cu2(μ-OH)(H2O)(OAc)2Cl] (1-Cl·H2O), and [(L2)Cu(μ-OH)(H2O)(MeOH)(OAc)2]OAc (2.H2O,MeOH). Both chiral complexes were characterized spectroscopically, as well as in the solid state by X-ray crystallography.