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Complexes of tripodal phosphine ligands: synthesis, structure and catalytic activities in the hydroboration of CO$_2$

A Aloisi 1 J-C Berthet 1 C Genre 1 Pierre Thuéry 1 T. Cantat 1
1 LCMCE - Laboratoire de Chimie Moléculaire et de Catalyse pour l'Energie (ex LCCEF)
NIMBE UMR 3685 - Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M)
Abstract : Tripodal ligands play a major role in transition metal chemistry by increasing the stability of their complexes and enabling a fine control of the reactivity at the metal center through their steric and electronic properties and their specifie coordination geometry. Among these ligands, triphos (MeC(CH$_2$PPh$_2$) has attracted considerable attention over the last years as it was successfully used for several applications in catalysis, including CO$_2$ hydrogenation, disproportionation of formic acid and reduction of amides. Because small changes within a ligand can induce different outcomes in a catalytic reaction, variations on the triphos backbone have been reported. In this study we report the use of PhSi(CH$_2$PPh$_2$)$_3$ and its phosphinite derivative PhSi(OPPh$_2$)$_3$h in the coordination chemistry of first-row transition metals, namely iron(II), cobalt(lI) and copper(I).
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A Aloisi, J-C Berthet, C Genre, Pierre Thuéry, T. Cantat. Complexes of tripodal phosphine ligands: synthesis, structure and catalytic activities in the hydroboration of CO$_2$. Journées de Chimie de Coordination de la SCF, Jan 2017, Grenoble, France. ⟨cea-02342086⟩

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