Synthese und Struktur von [(Ph3P)3Ir(μ3-H)(μ-H)2Ag2(OSO2(OSO2CF3)(H2O)]-(CF3SO3),einem Komplex mit einer gewinkelten Ag-Ir-Ag-Einheit

Abstract

Die doppelte Ag⊕‐Addition an ein basisches Metallzentrum gelang bei der Umsetzung von CF3SO3Ag mit der Lewis‐base mer‐[IrH3(PPh3)3]. Die dabei entstehende stabile Titelverbindung ‐ das Bild rechts zeigt das Kation (ohne H‐Atome) ‐ weist bei Raumtemperatur laut NMR‐Befunden ein dynamisches Verhalten auf.

An Oriented 1D Coordination/Organometallic Dimetallic Molecular Wire with AgPd Metal–Metal Bonds

“…If only a covalent AgN interaction was present, the silver center would remain, with 12 electrons, coordinatively unsaturated. It was therefore expected to interact with the triflate oxygen atom(s),15 as observed in other cases,16 but it prefers to find the required additional electron density in the PdC1 σ bond involving the cyclometalated ligand of another complex molecule (Figure 2). This situation is best described as a multicentered interaction resulting in the donation of σ‐ and π‐electron density from the PdC1 ( p z orbital) and Pd‐bound aryl regions to the coordinatively unsaturated silver center.…”