| 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 |
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| 引用本文： | 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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| 作者姓名： | 柳士忠 王恩波 许林 |
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| 作者单位： | 湖北大学化学系，东北师范大学化学系 |
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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系列稀土元素杂多配合物ＬｎＰＷ１２Ｏ４０、ＬｎＨＳｉＷ１２Ｏ４０和ＬｎＨＧｅＷ１２Ｏ４０（Ｌｎ＝Ｌａ，Ｃｅ，Ｐｒ，Ｎｄ，Ｓｍ，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。
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| 关 键 词： | 氧化还原 稀土金属 杂多络合物 |
| 收稿时间： | 1992/12/22 0:00:00 |
STUDIES ON REDOX PROPERTIES AND STABILITY OF 1:12 HETEROPOLY COMPLEXES WITH RARE EARTH ELEMENTS |
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| Liu Shizhong,Wang Enbo and Xu Lin.STUDIES ON REDOX PROPERTIES AND STABILITY OF 1:12 HETEROPOLY COMPLEXES WITH RARE EARTH ELEMENTS[J].Chinese Journal of Inorganic Chemistry,1994,10(1):40-46. |
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| Authors: | Liu Shizhong Wang Enbo and Xu Lin |
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| Institution: | Department of Chemistry, Hubei University, Wuhan, 430062,Department of Chemistry. Northeast Normal University, Changchun, 130024 and Department of Chemistry. Northeast Normal University, Changchun, 130024 |
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| Abstract: | In this paper, the redox propertics and solution stability of three series of twenty-oneheteropoly complexes with rare earth clements, such as LnPW12 O40, LnHSiW12O40 andLnHGeW12O40(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. |
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| Keywords: | redox stability rare earth element heteropolyanion |
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