A Peanut‐Like Sb‐Embedded Polyoxoniobate Cage for Hydrolytic Decomposition of Chemical Warfare Agent

Abstract A Sb‐embedded polyoxoniobate has been originally synthesized under hydrothermal conditions. Particularly, the peanut‐like [Sb 2 Nb 24 O 72 ] 18− cluster cage in 1 with C 2h symmetry is composed of two 9‐nuclear {SbNb 9 O 33 } motifs and one {Nb 6 O 24 } crown‐shaped ring. The compound 1 present the novel structure of Sb‐substituted sandwich‐type polyoxoniobate with antimoniobate cluster cage. Decomposition catalytic studies indicate that compound 1 exhibits good hydrolytic activity and stability on the degradation of nerve agent simulant dimethylphosphonate (DMMP).