An organo-ruthenium grafted zinc-substituted tungstoarsenate†
Abstract
An unprecedented organo-ruthenium grafted asymmetric zinc-substituted sandwich-type tungstoarsenate, [{B-α-AsW9O34}{B-β-AsW8O31}{Zn4(OH)2(H2O)2}{(RuC6H6)3}]6− (1) has been synthesized and characterized, representing the fundamentally novel binding mode of Ru-coordination to a polyoxoanion fragment via Ru–O–W, Ru–O–Zn and Ru–O–Zn(W) bonds. Polyanion 1 represents the first example of a structurally characterized transition metal substituted sandwich-type polyoxometalate incorporated with organo-ruthenium.