metal-organic compounds
The title complexes, [M(C5O5)(C12H8N2)2], with M = CoII, NiII and CuII, all lie across twofold rotation axes, around which two 1,10-phenanthroline ligands are arranged in a chiral propeller manner. The CoII and NiII complexes are isostructural, with octahedral coordination geometry, while the local geometry of the CuII complex is severely distorted from octahedral.