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采用立体选择法合成了Dawson结构三取代杂多酸盐:K10H2[P2W15TiO62].2H2O,K12[P2W15(TiO2)3O59].8H2O,K12[P2W15Zr3O62].6H2O和K12[P2W15(ZrO2)3O59].5H2O,并利用红外光谱和紫外光谱对其进行了检测。用电化学方法研究了所合成杂多酸盐的氧化还原性质。实验结果表明:过氧型杂多配合物的氧化性大于非过氧型杂多配合物的氧化性。过氧型中Ti取代的杂多配合物的氧化性大于Zr取代的杂多配合物的氧化性。
Dawson structure trisubstituted heteropolyacid salt was synthesized by stereoselectivity method. K10H2 [P2W15TiO62] .2H2O, K12 [P2W15 (TiO2) 3O59] .8H2O, K12 [P2W15Zr3O62] .6H2O and K12 [P2W15 (ZrO2) 3O59] , And its use of infrared spectroscopy and UV spectroscopy were detected. The redox properties of the synthesized heteropolyacid salts were studied electrochemically. The experimental results show that the peroxo-type heteropoly complexes are more oxidative than the non-peroxy type heteropoly complexes. Oxidation of Ti-substituted heteropoly complexes in peroxides is greater than that of Zr-substituted heteropoly complexes.