Synthesis and Ligand-Exchange Kinetics of the Solvated Trigonal-Prismatic Clusters [W6CCl12L6]2+ (L=dmf, py)

摘要

A variety of hexanuclear transition-metal clusters have found use in solution-based syntheses of porous coordination solids, certain of which behave as molecular sieves, chemical sensors, or ion-exchange materials. These clusters possess rigid, metal-metal-bonded core structures, typically consisting of an octahedron of metal atoms with eight face-capping or twelve edge-bridging ligands. Each metal center is additionally coordinated by an outer terminal ligand, for which the exchange chemistry and bridge-forming capability are of critical importance in the generation of solid frameworks.