Dinuclear CuII-CuII and CuI-CuII Complexes of a Compartmental Ligand - Syntheses, Structures, Magnetic, and Catalytic Studies
Résumé
Dinuclear CuII-CuII (1) and CuI-CuII (2) complexes were derived from a new N4O2 donor compartmental ligand (H2L) by changing the nature of the Cu precursors used. Single-crystal X-ray diffraction studies revealed that the Cu1 site in 1 has octahedral geometry and is in the inner compartment of the ligand axially coordinated by two ClO4 - anions, whereas the outer Cu2 ion has square-pyramidal geometry. In 2, there are two copper dinuclear complexes (A and B) in the asymmetric unit; the inner core is occupied by Cu1/Cu3 in the +2 oxidation state in a square-planar geometry.....