A new Dawson-like tungstoantimonate related to [Sb~VW_(18)O_(60)(OH)2]~(9-)

摘要

A new tungstoantimonate (NH4)9[Sb~VW_(18)O_(60)(OH)2]·25H2O (1) has been synthesized under acidic medium conditions and characterized by element analysis, IR, TG, UV, PXRD and single-crystal X-ray diffraction analysis. Compound 1 represents the first example of Sb(V)-containing polyoxometalate with unusual Dawson-like construction. The polyoxoanion incorporates an {SbO6} unit into the center of {W_(18)O_(54)} cluster cage.