%0 Conference Paper %F Poster %T Complexes of tripodal phosphine ligands: synthesis, structure and catalytic activities in the hydroboration of C0$_2$ %+ Laboratoire de Chimie Moléculaire et de Catalyse pour l'Energie (ex LCCEF) (LCMCE) %A Aloisi, A %A Berthet, J.-C %A Genre, C %A Thuéry, Pierre %A Cantat, T %< avec comité de lecture %B GECOM ConCOORD %C Forges-les-Eaux, France %8 2017-05-15 %D 2017 %Z Chemical Sciences/Material chemistryConference poster %X 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 specific coordination geometry. Among those ligands, triphos (MeC(CH$_2$PPh$_2$)$_3$) has attracted considerable attention these years as it was successfully used for several appJlcations in catalysis, including CO$_2$ hydrogenation, disproportionation of formic acid and reduction of amides. Because small changes within a ligand can induce different outcomes lin a catalytic reaction, variations on the triphos backbone have been reported. We report here the use of PhSi(CH$_2$PPh$_2$)$_3$ and its phosphinite derivative PhSi(OPPh$_2$)$_3$ in the coordination chemistry of first-row transition metals with iron(ll), cobalt(lI) and copper(l) (scheme 1). %G English %2 https://cea.hal.science/cea-02342083/document %2 https://cea.hal.science/cea-02342083/file/Berthet_Gecom2017.pdf %L cea-02342083 %U https://cea.hal.science/cea-02342083 %~ CEA %~ CNRS %~ PUBNIMBE %~ INC-CNRS %~ IRAMIS-NIMBE %~ CEA-UPSAY %~ UNIV-PARIS-SACLAY %~ CEA-UPSAY-SACLAY %~ TEST-HALCNRS %~ GS-ENGINEERING %~ IRAMIS %~ GS-CHIMIE %~ GS-PHYSIQUE %~ INSTITUT-SCIENCES-LUMIERE %~ TEST2-HALCNRS