Comment on: “Synthesis of dodecamolybdoantimonate( v ) salts containing the Keggin structure” by Raj P. Singh, Radheshyam P. Khatri, Jean Dubois, Sushma S. Gaur and Mitsuo Abe, J. Chem. Soc. , Dalton Trans. , 1990, 947–951

The existence of a dodecamolybdoantimonate(v) anion with the Keggin structure would be a highlight of the heteropolyoxometalate chemistry as a whole. However, we could not confirm the existence of ammonium, potassium, rubidium and cesium dodecamolybdoantimonate as claimed by the authors. As a matter of fact, the authors misinterpreted their presented experimental data. Instead of the dodecamolybdoantimonates, the well-known hexagonal molybdenum oxide was prepared. The given misinformation has to be corrected, even 28 years after its publication.