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PW_9O_(34)~(■-)阴离子可与镧系元素离子反应生成[(LnO)_3(PW_9O_(34))_2]~(15)-型杂多阴离子(Ln=LaCe,Pr,Nd,Sm,Eu,Gd).~(31)PNMR 测定表明,杂多阴离子中的 PW_9O_(34)~(■-)具有 A 型结构;极谱半波电位、还原电子数及红外光谱测试表明,杂多阴离子中的 PW_9O_(34)~(9-)是 A,α型异构体.杂多阴离子在水溶液中稳定的 pH 范围是5.3—8.1,其钾盐的热分解温度约480℃.
The anions of PW_9O_ (34) ~ (-) can react with lanthanide ions to form heteropolyanions of [(LnO) _3 (PW_9O_ (34)) _2] , Eu, Gd). ~ (31) PNMR measurements showed that PW_9O_ (34) ~ (■ -) had a type A structure in heteropolyanion. The results of polarographic half-wave potential, The anions PW_9O_ (34) ~ (9-) are the isomers of type A. The heteropolyanions have a stable pH range of 5.3-8.1 in aqueous solution and have a thermal decomposition temperature of about 480 ° C.