Homogeneous MOF-supported catalysis: a direct comparison of catalytic hydroboration with Ni tripodal PE (E = Si, Ge) complexes.

The MOF material NU-1000 was employed to host Ni tripodal complexes prepared from new organometallic precursors [HNi((,,,)-E(-CHCHPPh)], E = Si (Ni-1), Ge (Ni-2). The new heterogeneous catalytic materials, Ni-1@NU-1000 and Ni-2@NU-1000, show the advantages of both homogeneous and heterogeneous catalysts. They catalyze the hydroboration of aldehydes and ketones more efficiently than the homogeneous Ni-1 and Ni-2, under aerobic conditions and show recyclability.

A general synthesis approach for supported bimetallic nanoparticles via surface inorganometallic chemistry.

The synthesis of ultrasmall supported bimetallic nanoparticles (between 1 and 3 nanometers in diameter) with well-defined stoichiometry and intimacy between constituent metals remains a substantial challenge. We synthesized 10 different supported bimetallic nanoparticles via surface inorganometallic chemistry by decomposing and reducing surface-adsorbed heterometallic double complex salts, which are readily obtained upon sequential adsorption of target cations and anions on a silica substrate. For example, adsorption of tetraamminepalladium(II) [Pd(NH) ] followed by adsorption of tetrachloroplatinate [PtCl ] was used to form palladium-platinum (Pd-Pt) nanoparticles.