Only rarely have polyoxometalates been recorded to form core–shell clusters,which presumably relates to the scarcity of appropriate building blocks.Herein,two high-nuclear core–shell polyoxophosphovanadates[M_(6)O_(...Only rarely have polyoxometalates been recorded to form core–shell clusters,which presumably relates to the scarcity of appropriate building blocks.Herein,two high-nuclear core–shell polyoxophosphovanadates[M_(6)O_(19)]^(2−)⊂[Na_(8)V^(V)_(6)V^(IV)_(12)O_(18)(PhPO_(3))_(24)]^(2+)(M=W 1,Mo 2)are synthesized utilizing Lindqvist polyoxometalates as templates.Both clusters exhibit a nested three-shell architecture characterized by an octahedron@cube@octahedron configuration.The outer shell[V^(V)_(6)V^(IV)_(12)O^(18)(PhPO_(3))_(24)]^(6−)consists of two simple{VO_(5)}and{PhPO_(3)}building blocks connected alternately and exhibits the same octahedral geometry as the inner core[M_(6)O_(19)]^(2−)due to anionic template effects.To the best of our knowledge,compounds 1 and 2 represent the first core–shell polyoxovanadates templated by Lindqvist polyoxometalates.Furthermore,compound 1 demonstrates efficacy and stability as a catalyst for the oxidation of sulfide.This work provides a new perspective on the construction of novel core–shell polyoxometalates.展开更多
基金supported by the NSFC of China(no.22271023 and 22371032).
文摘Only rarely have polyoxometalates been recorded to form core–shell clusters,which presumably relates to the scarcity of appropriate building blocks.Herein,two high-nuclear core–shell polyoxophosphovanadates[M_(6)O_(19)]^(2−)⊂[Na_(8)V^(V)_(6)V^(IV)_(12)O_(18)(PhPO_(3))_(24)]^(2+)(M=W 1,Mo 2)are synthesized utilizing Lindqvist polyoxometalates as templates.Both clusters exhibit a nested three-shell architecture characterized by an octahedron@cube@octahedron configuration.The outer shell[V^(V)_(6)V^(IV)_(12)O^(18)(PhPO_(3))_(24)]^(6−)consists of two simple{VO_(5)}and{PhPO_(3)}building blocks connected alternately and exhibits the same octahedral geometry as the inner core[M_(6)O_(19)]^(2−)due to anionic template effects.To the best of our knowledge,compounds 1 and 2 represent the first core–shell polyoxovanadates templated by Lindqvist polyoxometalates.Furthermore,compound 1 demonstrates efficacy and stability as a catalyst for the oxidation of sulfide.This work provides a new perspective on the construction of novel core–shell polyoxometalates.
