| 12—钨磷杂多酸稀土盐的合成与性质研究（Ⅰ） |
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| 引用本文： | 柳士忠,王恩波.12—钨磷杂多酸稀土盐的合成与性质研究（Ⅰ）[J].湖北大学学报(自然科学版),1993,15(2):161-166. |
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| 作者姓名： | 柳士忠 王恩波 |
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| 作者单位： | 湖北大学
(柳士忠)，东北师范大学
(王恩波)，东北师范大学(王广) |
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| 摘 要： | 用复分解法首次合成出7种稀土元素Keggin结构钨磷杂多配合物;LnPW_(12)O_(40)·xH_2O(Ln=La,Ce,Pr,Nd,Sm,Eu,Gd)。通过ICP、~(31)PNMR,IR、UV、x—射线粉末衍射、DTA—TGA、极谱对它们进行丁表征。极谱研究表明有三个氧化还原步骤,红外光谱表明抗衡阳离子和结晶水对v_W-o_d和v_W-o-W的振动频率有影响。热分析表明所有配合物的分解湿度为580℃左右。
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| 关 键 词： | 钨磷杂多酸盐 Keggin结构 稀土族 |
STUDIES ON THE SYNTHESIS AND PROPERTIES OF HETEROPOLY COMPLEXES SALTS OF RARE EARTH 12-TUNGSTENPHOSPHATES(PART I ) |
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| Liu Shizhong.STUDIES ON THE SYNTHESIS AND PROPERTIES OF HETEROPOLY COMPLEXES SALTS OF RARE EARTH 12-TUNGSTENPHOSPHATES(PART I )[J].Journal of Hubei University(Natural Science Edition),1993,15(2):161-166. |
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| Authors: | Liu Shizhong |
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| Institution: | Liu Shizhong
( Hubei University)
Wang Enbo Wang Guang
(Northeast Normal University) |
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| Abstract: | Seven new heteropoly complexes salts of rare earth 12 - tungstenphosphates Ln PW12O40] xH2O(Ln = La,Ce,Pr,Nd,Sm,Eu,Gd)were prepared by double decomposition method and characterized by ICP,31P NMR,1R ,UV ,x - ray powder diffraction.DTA - TGA and polarography. Polarograms of LnPW12O<0 show three reduction steps. The IR spectra show that the countercations and the crystallization water have an influence upon the vibration frequencies of iv-odand vw-o-w All the complexes decompose at about 580C. |
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| Keywords: | Heteropoly tungstenphosphates Keggin structure Rare earth elements |
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