Models for bimetallic catalysts: selectivity in ligand addition as a function of rhenium oxidation state in Pt3Re clusters
Abstract
The ligands CO, P(OR)3, and X–(X = Cl, Br, I) add selectively to the Re Pt3 sites in the coordinatively unsaturated clusters [Pt3{Re(CO)3}(µ-dppm)3]+ and [Pt3{ReO3}(µ-dppm)3]+ respectively, dppm = Ph2PCH2PPh2: the selectivity thus displays a remarkable dependency on the oxidation state of rhenium.
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