| 粉状白钨酸的研究——Ⅵ.多种偏钨酸盐的PMR谱研究 |
| STUDIES ON WHITE POWDERY TUNGSTIC ACID Ⅵ. PMR STUDY OF SEⅤERAL METATUNGSTATES |
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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([C2H5-NH3]+、[(C2H5)2NH2]+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。 |
| 关键词: 白钨酸 偏钨酸盐 PMR谱 |
| 基金项目: |
| Abstract: The structure of several metatungstates, such as alkali metatungstates (K+, Na+), ammonium metatungstate and alkylammonium metatungstates ([C2H5-NH3]+, [(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. |
| Keywords: white tuagstic acid raetatungstate PMR spectrum |
| 投稿时间：1985-07-11 |
| 摘要点击次数: 1867 |
| 全文下载次数: 2006 |
| 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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