| 希土元素1:12系列杂多配合物的氧化还原性和稳定性质研究 |
| STUDIES ON REDOX PROPERTIES AND STABILITY OF 1:12 HETEROPOLY COMPLEXES WITH RARE EARTH ELEMENTS |
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| 摘要: 本文用极谱。循环伏安和紫外吸收光谱方法研究了21种含钨1:12系列希土元素来多配合物LnPW12O40LnHSiW12O40和LnHGeW12O40(Ln=La,Ce,Pr,Nd,Sin,Eu.Gd)的氧化还原性质和溶液稳定性,讨论了抗衡离子、介质和酸度等因素对杂多阴离子氧化还原性的影响,对三种不同中心原子的杂多阴离子氧化还原顺序进行了比较,探讨了极谱半波电位与pH的关系,提出了氧化还原机理。 |
| 关键词: 氧化还原 稳定性 希土元素 杂多阴离子 |
| 基金项目: 国家自然科学基金 |
| Abstract: In this paper, the redox propertics and solution stability of three series of twenty-oneheteropoly complexes with rare earth clements, such as LnPW12O40, LnHSiW12O40 and LnHGeW12O40(Ln=La, Ce, Pr, Nd, Sm, Eu, Gd) were studied by means of polarography,Cyclic voltammetry and ultraviolet absorption spectroscopy. The effect of countercation, medium and acidity on the redox propertics of heteropoly anions were discussed. The order ofoxidation power of three kinds of heteropoly anions with different central atom was compared.The correlation of the polarographic half wave potentials with PH was obtained and the reduction mechanism was proposed. |
| Keywords: redox stability rare earth element heteropolyanion |
| 投稿时间：1992-12-22 |
| 摘要点击次数: 983 |
| 全文下载次数: 1238 |
| 柳士忠,王恩波,许林.希土元素1:12系列杂多配合物的氧化还原性和稳定性质研究[J].无机化学学报,1994,10(1):40-46. |
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