Heteroleptic stannylenes,featuring pendant hemilabile iminophosphorane functionalities and kinetically stabilizing terphenyl ligands,were synthesized straightforwardly through formal C-H activation.Subsequently,they w...Heteroleptic stannylenes,featuring pendant hemilabile iminophosphorane functionalities and kinetically stabilizing terphenyl ligands,were synthesized straightforwardly through formal C-H activation.Subsequently,they were investigated for their ability to activate ammonia through N-H bond scission.By combining synthetic modifications of the ancillary ligand framework and computational analyses,detailed insights into the mechanism of NH_(3) activation by these systems were obtained,highlighting an activation pathway at tin without a change in oxidation state.Additionally,an observed by-product during these studies underscores the non-innocence of a lithium salt in the synthesis of the stannylene starting materials,providing access to a novel lithium stannylenoid.展开更多
文摘Heteroleptic stannylenes,featuring pendant hemilabile iminophosphorane functionalities and kinetically stabilizing terphenyl ligands,were synthesized straightforwardly through formal C-H activation.Subsequently,they were investigated for their ability to activate ammonia through N-H bond scission.By combining synthetic modifications of the ancillary ligand framework and computational analyses,detailed insights into the mechanism of NH_(3) activation by these systems were obtained,highlighting an activation pathway at tin without a change in oxidation state.Additionally,an observed by-product during these studies underscores the non-innocence of a lithium salt in the synthesis of the stannylene starting materials,providing access to a novel lithium stannylenoid.
