Role of Bulky Substituents in the Mutual Influence of Metal Centers in a Binuclear Copper Complex with a Ditopic Di-o-quinone Ligand

The study of a binuclear copper complex, bearing a cage-like architecture, and obtained by self-assembly from a ditopic di-o-quinone ligand containing bulky substituents in the linker, showed that the exchange interactions characteristic of biradical forms of the free ligand are fully manifested in the obtained complex. The energy of the exchange interactions changes depending on the volume of the substituents that limit rotational vibrations around the linker bonds.