A NEW LIGAND FOR THE SELF ASSEMBLY OF STARBURST COORDINATION OLIGOMERS AND POLYMERS

The coordination properties of the tridentate ligand 2,2' : 6',2"-terpyridine (tpy) make it an ideal structural unit to control the assembly of coordination oligomers and polymers, and the new ligand 1,3,5-tris[4'-(2,2' : 6',2"-terpyridinyl)]benzene (ttpy) has been prepared as a building block for the assembly of coordination polymers, the complex [{(tpy)Ru}3(ttpy)][PF6]6 having been prepared; in the trinuclear complex, the three ruthenium(II) centres are equivalent and oxidise at the same potential.