| 粉状白钨酸的研究——Ⅵ.多种偏钨酸盐的PMR谱研究 |
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| 引用本文： | 冯安春,宋沅,黄景凡,顾翼东. 粉状白钨酸的研究——Ⅵ.多种偏钨酸盐的PMR谱研究[J]. 无机化学学报, 1986, 2(4): 14-19 |
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| 作者姓名： | 冯安春 宋沅 黄景凡 顾翼东 |
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| 作者单位： | 复旦大学化学系(冯安春，宋沅，黄景凡)，复旦大学化学系(顾翼东) |
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| 摘 要： | 本文采用PMR技术,研究了由粉状白钨酸制得的偏钨酸钾、钠、铵以及有机铵([C_2H_5-NH_3]~ 、[(C_2H_5)_2NH_2]~ 的阴离子结构;通过测定分子中不可交换氢的数目和氢峰的化学位移,肯定了它们都具有Keggin结构,并讨论了影响化学位移的因素。
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| 关 键 词： | 白钨酸 偏钨酸盐 PMR谱 |
| 收稿时间： | 1985-07-11 |
STUDIES ON WHITE POWDERY TUNGSTIC ACID VI. PMR STUDY OF SEVERAL METATUNGSTATES |
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| Feng Anchun,Song Yuan,Huang Jingfan and Gu Yidong(Yih tongKu. STUDIES ON WHITE POWDERY TUNGSTIC ACID VI. PMR STUDY OF SEVERAL METATUNGSTATES[J]. Chinese Journal of Inorganic Chemistry, 1986, 2(4): 14-19 |
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| Authors: | Feng Anchun Song Yuan Huang Jingfan Gu Yidong(Yih tongKu |
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| Abstract: | The structure of several metatungstates, such as alkali metatungstates (K , Na ), ammonium metatungstate and alkylammonium metatungstates (CZH5NH3 , (C2H5)2NH2 ) prepared from white powdery tungstie acid, have been studied by means of PMR spectra. The Keggin structure of these metatungstates has been identified by determination of the number of non-exchangeable protons in their structure, and the values of chemical shift have been estimated. The effect of various structure upon the chemical shift of PMR has also been discussed. |
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| Keywords: | white tuagstic acid raetatungstate PMR spectrum |
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