A well-defined Ir-NHC-based heterogeneous catalyst was synthesized by Surface Organometallic Chemistry on mesostructured hybrid organic inorganic silica. This Ir-NHC catalyst was obtained in three key steps: i) synthesis of a mesostructured material with regularly distributed imidazolium units, ii) formation of Ag-NHC moieties and iii) transmetallation with [Cp*IrCl₂]₂, each step being fully controlled and supported by several analytical techniques (XRD, BET, elemental analysis and solid state NMR). This Ir-NHC material is highly active in H/D-exchange reaction of acetophenone with methanol-d₄. Noteworthy, this catalytic material has catalytic performances similar to homogeneous homologues with the advantage of being easily recyclable.

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1. Synthesis of New heterogeneous catalysts through the controlled growth of inorganic nanostructures around monodispersed metal nanoparticles.
2. Well-Defined Single-Site Heterogeneous Ru-NHC Catalysts for the metathesis of functionalized olefin Reaction via Surface OrganoMetallic Chemistry on Hybrid Organic-Inorganic Materials