The trivanadium-subatituted heteropolytungstates have been synthesized from their lacunary precusor a-Na9GaW9O(34)H2.(183)W NMR spectrum of the title anion consists of two lines as expected for the C3v structure of th...The trivanadium-subatituted heteropolytungstates have been synthesized from their lacunary precusor a-Na9GaW9O(34)H2.(183)W NMR spectrum of the title anion consists of two lines as expected for the C3v structure of the trisubetituted A-type Keggin anion.展开更多
文摘The trivanadium-subatituted heteropolytungstates have been synthesized from their lacunary precusor a-Na9GaW9O(34)H2.(183)W NMR spectrum of the title anion consists of two lines as expected for the C3v structure of the trisubetituted A-type Keggin anion.