Synthesis and characterisation of high-nuclearity osmium–silver mixed-metal clusters†
Abstract
The reaction of the triosmium cluster anion, [Os3(μ-H)(CO)11][PPN] (PPN = [N(PPh3)2]+), with [AgPF6] in the presence of [Ir(PPh3)2(CO)Cl] in THF at room temperature affords two new high-nuclearity osmium–silver clusters, [Os13Ag9(CO)48][PPN] (1) and [Os9Ag9(μ3-O)2(CO)30][PPN] (2), and an iridium complex, [Ir(PPh3)2(CO)Cl(O2)] (3).