%0 Journal Article %T Combining ligand-enhanced backdonation and steric shielding to stabilize a mono-substituted Au( i ) carbene %+ Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM) %+ Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA) %A Vesseur, David %A Miqueu, Karinne %A Bourissou, Didier %< avec comité de lecture %@ 1359-7345 %J Chemical Communications %I Royal Society of Chemistry %V 59 %N 36 %P 5387-5390 %8 2023-05-02 %D 2023 %R 10.1039/d3cc01007d %Z Chemical Sciences %Z Chemical Sciences/Theoretical and/or physical chemistryJournal articles %X A mono-substituted Au(i) carbene was prepared by reacting HC(N2)(Dmp) (Dmp = 2,6-dimesitylphenyl) with an (o-carboranyl)-diphosphine AuNTf2 complex. It is stable up to −10 °C and was characterized by NMR spectrocopy. According to DFT calculations, the chelating P^P ligand enhances Au → Ccarb backdonation, while the Dmp substituent provides kinetic stabilization but does not bias the electronic structure of the carbene complex %G English %2 https://univ-pau.hal.science/hal-04096638/document %2 https://univ-pau.hal.science/hal-04096638/file/Hal_AuCH%28dmp%29.pdf %L hal-04096638 %U https://univ-pau.hal.science/hal-04096638 %~ IRD %~ UNIV-TLSE3 %~ CNRS %~ UNIV-PAU %~ IPREM %~ INC-CNRS %~ IPREM-CAPT %~ UPPA-OA %~ TOULOUSE-INP %~ UNIV-UT3 %~ UT3-INP %~ UT3-TOULOUSEINP %~ LHFA