| 稀土元素及其显色效应的研究 VI:镧-偶氮氯膦III——-钇混合多核配合物的生成 |
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| 引用本文： | 沈含熙,刘曾宁.稀土元素及其显色效应的研究 VI:镧-偶氮氯膦III——-钇混合多核配合物的生成[J].化学学报,1983,41(2):144-148. |
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| 作者姓名： | 沈含熙 刘曾宁 |
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| 作者单位： | 南开大学化学系 |
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| 摘 要： | The interference of lanthanum in the spectrophotometric determination of yttrium in the form of β-type complex with chlorophosphonazo III (CPA III) is proved to be a cocoloration effect. It is due to the formation of a mixed polynuclear complex between CPA III and lanthahum-yttrium with a cyclic structure. The composition of the complex has been established to be La:CPA III:Y = 1:2:1 by the method of molar ratio. The optimal conditions for the formation of polynuclear complex and influence factors have also been studied. A "replacement type" reaction is proposed to account for the cocoloration effect.
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| 关 键 词： | 显色反应 硫代磷酸P 苯偶氮化合物 有机氯化合物 稀土元素 镧 多核络合物 钇 萘二磺酸P 偶氮氯膦 |
Studies on the cocoloration effect for rare earthsVI: The formation of mixed polynuclear complex lanthanum-chlorophosphonazo III-yttrium. |
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| SHEN HANXI,LIU ZENGNING.Studies on the cocoloration effect for rare earthsVI: The formation of mixed polynuclear complex lanthanum-chlorophosphonazo III-yttrium.[J].Acta Chimica Sinica,1983,41(2):144-148. |
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| Authors: | SHEN HANXI LIU ZENGNING |
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| Abstract: | The interference of lanthanum in the spectrophotometric determination of yttrium in the form of β-type complex with chlorophosphonazo III (CPA III) is proved to be a cocoloration effect. It is due to the formation of a mixed polynuclear complex between CPA III and lanthahum-yttrium with a cyclic structure. The composition of the complex has been established to be La:CPA III:Y = 1:2:1 by the method of molar ratio. The optimal conditions for the formation of polynuclear complex and influence factors have also been studied. A "replacement type" reaction is proposed to account for the cocoloration effect. |
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| Keywords: | COLOR REACTION PHOSPHOROTHIOIC ACID P BENZENE AZO COMPOUNDS ORGANO CHLORIDE COMPOUNDS RARE ELEMENT LANTHANUM POLYNUCLEAR COMPLEX YTTRIUM NAPHTHALENEDISULFONIC ACID P CHLOROPHOSPHONAZO |
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