Clusters as models for surface catalysis: a model for sulfide effects on Pt–Re catalysts
Abstract
By reaction with propene sulfide, one or two sulfur atoms are added to the tetrahedral cluster cation [Pt3{Re(CO)3}(µ-dppm)3]+1(dppm = Ph2PCH2PPh2), to give [Pt3{Re(CO)3}Sn(µ-dppm)3]+(n= 1, 2; n= 2, 3); the reactions provide an interesting model for sulfidation of heterogeneous Pt–Re catalysts.