title: Electrostatically controlled hierarchical arrangement of monocationic silver(I) and dicationic mercury(II) ions between disk-shaped template ligands.
abstract: This paper describes hierarchical arrangement of three Ag+ and three Hg2+ ions using two disk-shaped hexa-monodentate template ligands in which three oxazolyl rings are arranged each on the two concentric circles. The hierarchical manner of ligand arrangement allows the selective binding of monocationic Ag+ and dicationic Hg2+ ions to the inner first and the outer second generation coordination sites, respectively. This hierarchically well-balanced metal assembly should arise primarily from a minimized electrostatic repulsion between positively charged six metal ions arranged within the heteronuclear complex.
authors.affiliation: Department of Chemistry, Graduate School of Science, The University of Tokyo, Hongo, Tokyo 113-0033, Japan.
authors.forename: Shuichi
authors.initials: S
authors.lastname: Hiraoka
authors.forename: Takaaki
authors.initials: T
authors.lastname: Tanaka
authors.forename: Mitsuhiko
authors.initials: M
authors.lastname: Shionoya