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镍取代型钼硅杂多蓝稀土盐的合成和性质研究
Synthesis and properties of rare earth molybdosilicic heteropoly blues substituted by nickel
【摘要】 合成了六种过渡金属Ni 取代的钼硅杂多蓝稀土盐配合物,Ln2H2[SiMo11Ni(H2O)O39]·nH2O( 其中Ln= La,Ce,Pr,Nd,Sm ,Gd),通过IR、UV、极谱、循环伏安、TG- DTA、ESR、29Si NMR、XPS、磁化率等对杂多蓝进行了表征.实验结果表明,杂多酸盐还原为杂多蓝后,基本结构发生轻微畸变,Ni2+ 及Ln3+ 未参与还原过程
【Abstract】 Six rare earth molybdosilicic heteropoly blues substituted by nickel, Ln 2H 2[SiMo 11 Ni(H 2O)O 39 ]· n H 2O(Ln=La,Ce,Pr,Nd,Sm,Gd)have been prepared and systematically characterized by IR, UV, CV, TG-DTA,ESR, 29 Si NMR,XPS, polarography and magnetic susceptibility. Based on the experimental results, it is reported that the reduced products (heteropoly blues) do not change their structures compared with unreduced compounds. Ni 2+ and Ln 3+ do not take part in the reduced processes.
【基金】 国家自然科学基金
- 【文献出处】 东北师大学报(自然科学版) ,JOURNAL OF NORTHEAST NORMAL UNIVERSITY (NATURAL SCIENCE EDITION) , 编辑部邮箱 ,1999年03期
- 【分类号】O614.33
- 【被引频次】1
- 【下载频次】146