Bismuth oxyhalides are a class of layered materials with rich potential for chemical and electronic tuning through anionic substitution,including the less-explored incorporation of pseudohalides such as azide(N_(3)^(-...Bismuth oxyhalides are a class of layered materials with rich potential for chemical and electronic tuning through anionic substitution,including the less-explored incorporation of pseudohalides such as azide(N_(3)^(-)).Here,we develop three synthetic strategies for the synthesis of BiON_(3):post-synthetic exchange,solvothermal synthesis,and coprecipitation.We present the first structural model for BiON_(3) that is supported by Rietveld refinement,revealing a highly disordered structure that features interdigitated azide molecules between the layers.We then probe the effects of heteroanion incorporation on the electronic structure of BiON_(3),including through the synthesis of mixed azide/iodide systems.Further,we demonstrate intriguing thermally induced reactivity in BiON_(3) that is suggestive of N atom transfer and subsequent gas evolution.This work considerably expands the available routes for synthetic control of this promising material platform.展开更多
基金support of this research through PRF#65120-DNI10。
文摘Bismuth oxyhalides are a class of layered materials with rich potential for chemical and electronic tuning through anionic substitution,including the less-explored incorporation of pseudohalides such as azide(N_(3)^(-)).Here,we develop three synthetic strategies for the synthesis of BiON_(3):post-synthetic exchange,solvothermal synthesis,and coprecipitation.We present the first structural model for BiON_(3) that is supported by Rietveld refinement,revealing a highly disordered structure that features interdigitated azide molecules between the layers.We then probe the effects of heteroanion incorporation on the electronic structure of BiON_(3),including through the synthesis of mixed azide/iodide systems.Further,we demonstrate intriguing thermally induced reactivity in BiON_(3) that is suggestive of N atom transfer and subsequent gas evolution.This work considerably expands the available routes for synthetic control of this promising material platform.
