Three multinuclear metal-organic coordination compounds based on 8-hydroxyquinoline derivative: Syntheses, structures and fluorescence properties

Three new metal-organic coordination compounds [Zn3L6] (1), [Cd3L6] (2) and [Cu2L4] (3) based on 8-hydroxyquinoline derivative (E)-2-[2-(4-chlorophenyl)vinyl]-8-hydroxyquinoline (HL) have been obtained. 1 and 2 have similar 'V'-type trinuclear structures whereas complex 3 displays dinuclear structure. The effects of central metals and reaction solvents on the structures of 1-3 have been discussed.63