| 镧系元素的双(十七钨二砷)杂多酸钾的合成和鉴定 |
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| 引用本文： | 刘景福,陈新,王恩波,阎德怀,刘宗绪.镧系元素的双(十七钨二砷)杂多酸钾的合成和鉴定[J].化学学报,1988,46(12):1168-1174. |
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| 作者姓名： | 刘景福 陈新 王恩波 阎德怀 刘宗绪 |
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| 作者单位： | 东北师范大学化学系;哈尔滨师范大学化学系 |
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| 基金项目： | 国家科学基金委员会资助 |
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| 摘 要： | 本文报道了镧系元素的杂多钨砷酸钾K17Ln(As2W17O61)2].xH2O(Ln=La, Ce,Pr, Nd, Sm, En, Gd, Tb, Dy, Tm, Yb)的合成方法和X射线粉末衍射, 紫外, 红外, 差热, X光电子能谱, 有效磁矩及极谱的研究结果.
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| 关 键 词： | 紫外分光光度法 红外分光光度法 杂多酸 Ｘ射线衍射分析 铥 镧系元素 极谱分析 钾化合物 Ｘ射线光电子谱法 铈 |
The preparation and characterization of Bis (2:17-arsenotungstate) lanthanates of potassium |
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| LIU JINGFU,CHEN XIN,WANG ENBO,YAN DEHUAI,LIU ZONGXU.The preparation and characterization of Bis (2:17-arsenotungstate) lanthanates of potassium[J].Acta Chimica Sinica,1988,46(12):1168-1174. |
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| Authors: | LIU JINGFU CHEN XIN WANG ENBO YAN DEHUAI LIU ZONGXU |
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| Abstract: | K17Ln(As2W17O61)2] (Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Tm, Yb) were prepared The stability range of the anions is given in terms of the pH. Their UV, IR, DTA, x-ray powder diffraction patterns, XPS, magnetic susceptibility of the lanthanides in complexes and polarog. reduction studies are reported. Magnetic measurement confirms that the lanthanide elements exist mainly in +3 oxidation state in these complexes and the magnetic moments are very close to the value given by van Vleck. XPS determination represents Ln-O bond of coordination character as well as the shifts of W 4f and O 1s between K17Ln(As2W17O61)2] and (NH4)6As2W18O62. Polarog. determination shows that there are 3 2-electron waves when these complexes are reduced indicating the reduction of W. |
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| Keywords: | ULTRAVIOLET SPECTROPHOTOMETRY INFRARED SPECTROPHOTOMETRY HETEROPOLYACID X-RAY DIFFRACTION ANALYSIS THULIUM LANTHANON POLAROGRAPHIC ANALYSIS POTASSIUM COMPOUNDS X-RAY PHOTOELECTRON SPECTROMETRY CERIUM |
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