| N,N-双-羧 甲基氨基乙酰蛋氨酸的合成及其与铟(III)离子螯合行为的研究 |
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| 引用本文： | 颜庆瑜,蒋凝,邹正国,谢毓元.N,N-双-羧 甲基氨基乙酰蛋氨酸的合成及其与铟(III)离子螯合行为的研究[J].化学学报,1983,41(6):519-524. |
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| 作者姓名： | 颜庆瑜 蒋凝 邹正国 谢毓元 |
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| 作者单位： | 中国科学院上海药物研究所 |
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| 摘 要： | The synthesis of N, N-bis-carboxymethylaminoacetomethionine was described. The acid dissociation constants and the formation constants of its indium (III) chelates at 25`C and \m\=0.1(KNO3) were determined (pka1=2.452, pka2=3.320, pka3=6.799; log KInL=8.90, log KInLi=6.47, log βInLi=15.37) by pH titration method. The hydrolysis constant of the chelate at 30`C was also given. The optimal pH for the formation of normal chelate was calculated to be about 4.8. In addition, the chelate species and coordinated atoms of the ligand were briefly discussed.
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| 关 键 词： | 酰胺 甲硫氨酸 氨三乙酸P 螯合剂 铟离子 螯合效应 |
The synthesis of N, N-bis-carboxymethylamino-acetomethionine and its chelating behaviour with indium (iii) |
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| YAN QINGYU,JIANG NING,ZOU ZHENGGUO,XIE YUYUAN.The synthesis of N, N-bis-carboxymethylamino-acetomethionine and its chelating behaviour with indium (iii)[J].Acta Chimica Sinica,1983,41(6):519-524. |
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| Authors: | YAN QINGYU JIANG NING ZOU ZHENGGUO XIE YUYUAN |
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| Abstract: | The synthesis of N, N-bis-carboxymethylaminoacetomethionine was described. The acid dissociation constants and the formation constants of its indium (III) chelates at 25`C and \m\=0.1(KNO3) were determined (pka1=2.452, pka2=3.320, pka3=6.799; log KInL=8.90, log KInLi=6.47, log βInLi=15.37) by pH titration method. The hydrolysis constant of the chelate at 30`C was also given. The optimal pH for the formation of normal chelate was calculated to be about 4.8. In addition, the chelate species and coordinated atoms of the ligand were briefly discussed. |
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| Keywords: | AMIDES METHIONINE NITRILOTRISACETIC ACID P CHELATING AGENT INDIUM ION CHELATE EFFECT |
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