Takumi Konno
Osaka University, Japan
Title: Non-coulombic ionic crystals with non-alternate arrangement of complex cations and inorganic anions
Biography
Biography: Takumi Konno
Abstract
In natural ionic solids, cations and anions are alternately arranged to avoid Coulombic repulsion between them. Thus, it is very hard to imagine that a number of cations and anions are separately aggreated to form a non-alternate arrangement. As part of our continuing research on the development of chiral multinuclear and supramolecular coordination systems with thiol-containing amino acids, we designed and synthesized a cationic AuI4CoIII2 hexanuclear complex having both D-penicillamine and 1,2-bis(diphenylphosphino)ethane. Remarkably, this complex was found to crystallize with appropriate inorganic anions to form ionic crystals, in which six AuI4CoIII2 complex-cations are aggregated into an octahedron-shaped supramolecular structure, with the concomitant aggregation of inorganic counter-anions into an unprecedented cluster structure.
