Supramolecular self-assembled coordination architecture composed of a doubly bis(2-pyridyl)pyrazolate bridged dinuclear CuII complex and 7,7′,8,8′,-tetracyano-p-quinodimethanide radicals

The reaction of a doubly bis(2-pyridyl)pyrazolate (bpypz(-)) bridged dinuclear cationic copper(II) complex with 7,7',8,8'-tetracyano-p-quinodimethanido radicals (TCNQ(center dot-)) afforded a tetranuclear complex, [Cu-4(mu-bpypz)4(mu-TCNQ)(2)](TCNQ)(2) (1), which self-assembles into a three-dimensional supramolecular coordination architecture via complementary weak coordination bonding and pi-pi stacking interactions.