Assembly of a Novel Dumbbell‐type Dinuclear Copper(II) Complex: Synthesis, Structure and Properties

Abstract

A new dumbbell-type 4,4'-bipy-bridged dinuclear copper(II) complex, [Cu 2 (4,4'-bipy)L 2 (H 2 O) 2 ](ClO 4 ) 4 ·8CH 3 OH·10H 2 O, where L = 1-[bis(3-aminopropyl)amino]-2-propanol and bipy = bipyridine, has been synthesized and characterized, X-ray crystallographic analysis shows that the [Cu 2 (4,4'-bipy)L 2 (H 2 O) 2 ] 4+ cations and water molecules generate layer structures extending parallel to bc planes through hydrogen bonding interactions of O-H···O and C-H···O.

New tetranuclear macrocyclic complex: Crystal structure, magnetic property and DNA cleavage activity

“…The larger j′ in the complex, assigned to the interactions between two macrocyclic units, reveals that the bis-bipy bridged groups can act as a magnetic exchange pathway. Comparing with our previous result that the magnetic exchange interaction of two copper ions bridged by a bipy group is weak even in a regular π-type electron transfer pathway [33], the larger j′ may be contributed to the π⋯π stacking interactions of two bridged bipy groups, which lead to effective magnetic interactions.…”