ol049954a_si_003.cif (14.51 kB)

Synthesis and Metalation of a Chiral, Pyridine-Strapped, Cyclic Bis(benzimidazole) Ligand

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posted on 18.03.2004, 00:00 by Tomasz Fekner, Judith Gallucci, Michael K. Chan
Synthesis of a chiral, strapped, cyclic bis(benzimidazole) ligand is reported. This compound forms a stable, Jahn−Teller-distorted, octahedral Cu(II) complex in which the elongated axis is positioned within the main macrocycle. The C2-symmetric bis(benzimidazole) core adopts a highly ruffled conformation with the ortho-substituted benzene rings located anti relative to the pyridine-bearing strap.