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Tris-, di-(organotitanium) substituted tungstosilicates α、β-[(CpTi)3(SiW9O37)]7- and γ-[(Cp-Ti)2(SiW10O38)]6- were prepared by the reaction of Cp2TiCl2 (Cp = η5-C5H5) with α、β-SiW9O349- (noted α、β-SiW9), γ-SiWO368- (noted γ-SiW10) . The products were characterized by means of elemental analysis, IR, 1H NMR, 183W NMR and polarography. 183W NMR spectra of the complexes support the stoichiometry of the new heteropolyanions and the probable retention of the A-XWg or γ-SiW10 units. And the organotitanium substituted compounds showed promising in vitro antitumor activity in two of human tumor cell lines.
6 - were prepared by the reaction of Cp2TiCl2 (Cp) (TiC1TiCl3) and tris-, di- (organotitanium) substituted tungstosilicates α, β - [(CpTi) 3 (SiW9O37)] 7- and γ - [(Cp-Ti) = η5-C5H5) with α, β-SiW9O349- (noted α, β-SiW9), γ-SiWO368- (noted γ- SiW10). The products were characterized by means of elemental analysis, IR, polarography. 183 W NMR spectra of the complexes support the stoichiometry of the new heteropolyanions and the probable retention of the A-XWg or γ-SiW10 units. And the organotitanium substituted compounds for promising in vitro antitumor activity in two of human tumor cell lines.