Helicates: Tetra‐ and Pentanuclear Double Helix Complexes of Cu^<scp>I</scp> and Poly(bipyridine) Strands

Abstract

Inorganic double helices having 2 and 2.5 turns are formed by the tetra- and penta(bipyridine) ligands 1 and 2, respectively, upon addition of Cu1 salts. These polynuclear complexes, in which the copper ions are aligned like a string of pearls, are estimated to be about 22 and 27 nm long, respectively.