Head-To-Tail and Heteroleptic Pentanuclear Circular Helicates
作者:Kirsty E. Allen、Robert A. Faulkner、Lindsay P. Harding、Craig R. Rice、T. Riis-Johannessen、Melanie L. Voss、Martina Whitehead
DOI:10.1002/anie.201003342
日期:2010.9.3
their reaction with Cu2+ ions leads to the formation of the title helicates. Incorporation of differing numbers of N‐donor units within a ligand strand containing a phenyl spacer results in a pentanuclear head‐to‐tail circularhelicate, whereas reaction of two different ligands results in a heterolepticpentanuclearcircularhelicate (see picture; green: Cu, red and blue: ligands).
Controlling the formation of metallosupramolecular assemblies by metal ionic radii
作者:Lindsay Bain、Sam Bullock、Lindsay Harding、T. Riis-Johannessen、Gary Midgley、Craig R. Rice、Martina Whitehead
DOI:10.1039/b920840b
日期:——
The formation of either dinuclear double-stranded or pentanuclearcircularhelicates from a ligand containing two tridentate domains separated by a phenylene unit can be controlled by inter-ligand steric interactions which themselves are governed by the size of the metal ion.