Metal–Organic Frameworks Stabilize Mono(phosphine)–Metal Complexes for Broad-Scope Catalytic Reactions

Mono­(phosphine)–M
(M–PR3; M = Rh and Ir)
complexes selectively prepared by postsynthetic metalation of a porous
triarylphosphine-based metal–organic framework (MOF) exhibited
excellent activity in the hydrosilylation of ketones and alkenes,
the hydrogenation of alkenes, and the C–H borylation of arenes.
The recyclable and reusable MOF catalysts significantly outperformed
their homogeneous counterparts, presumably via stabilizing M–PR3 intermediates by preventing deleterious disproportionation
reactions/ligand exchanges in the catalytic cycles.