Morio Yashiro, Akira Ishikubo and Makoto Komiyama
A trinuclear Zn2+ complex is prepared using a ligand having six pyridine moieties, N,N,N′,N′,N″,N″ -hexakis(2-pyridylmethyl)[tris(2-aminoethyl)amine] (L3), and efficiently hydrolyses diribonucleotides at pH 7 and 50 °C, showing much greater activity than a dinuclear Zn2L2 complex.