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Six new compounds, α,β-KaHb[GeW9M3(H2O)3O37].xH2O(M = Al, Ga,In; a + b =7) and α-K9H5[Ge2W18Ga6(H2O)3O74].20H2O, were synthesized from the lacunary precursors α and β-GeW9O34 10- and characterized by elemental analysis, spectroscopy and electrochemistry. Tungsten-183 NMR spectra of the title complexes consist of two lines with intensity ratio 2:1 as expected for trisubstituted heteropoly anions. The intensity ratio of α-Ga compound is 1:2, which is different from others(2:1). With the help of FAB mass spectrum, we concluded that it is a dimer with D3h, structure in aqueous, and the others exist by monomers with C3c structures.
Six new compounds, α, β-KaHb [GeW9M3 (H2O) 3O37] .xH2O (M = Al, Ga, In; a + b = 7) and α-K9H5 [Ge2W18Ga6 (H2O) 3O74] the lacunary precursors α and β-GeW9O34 10- and characterized by elemental analysis, spectroscopy and electrochemistry. Tungsten-183 NMR spectra of the title properties consist of two lines with intensity ratio 2: 1 as expected for trisubstituted heteropolyions. The intensity ratio of α-Ga compound is 1: 2, which is different from others (2: 1). With the help of FAB mass spectrum, we said that it is a dimer with D3h, structure in aqueous, and the others exist by monomers with C3c structures.