| 双甘肽稀土配合物溶液结构的~(13)C~1H NMR研究 |
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| 引用本文： | 任吉民,牛春吉,裴奉奎,王文韵,倪嘉缵.双甘肽稀土配合物溶液结构的~(13)C~1H NMR研究[J].物理化学学报,1992(2). |
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| 作者姓名： | 任吉民 牛春吉 裴奉奎 王文韵 倪嘉缵 |
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| 作者单位： | 中国科学院长春应用化学研究所，中国科学院长春应用化学研究所，中国科学院长春应用化学研究所，中国科学院长春应用化学研究所，中国科学院长春应用化学研究所 长春 130022，长春 130022，长春 130022，长春 130022，长春 130022 |
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| 摘 要： | 关于双甘肽的~(13)C化学位移行为及其与稀土离子的配位作用前人有过报导。但有关水溶液中双甘肽稀土配合物的结构仍不清楚。本文测定了在重稀土离子Dy~(3+)、Ho~(3+)、Er~(3+)、Tm~(3+)和Yb~(3+)作用下双甘肽~(13)C和~1H的顺磁诱导位移,研究了水溶液中双甘肽稀土配合物的组成及结构。1 实验部分
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| 关 键 词： | 双甘肽 稀土配合物 核磁共振溶液结构 |
~(13)C AND ~1H NMR STUDIES OF SOLUTION STRUCTURE OF LANTHANIDE COMPLEX WITH GLYCYL-GLYCINE |
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| Ren Jimin,Niu Chunji,Pei Fengkui,Wang Wenyun,Ni Jiazan Changchun Institute of Applied Chemistry,Academia Sinica,Changchun.~(13)C AND ~1H NMR STUDIES OF SOLUTION STRUCTURE OF LANTHANIDE COMPLEX WITH GLYCYL-GLYCINE[J].Acta Physico-Chimica Sinica,1992(2). |
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| Authors: | Ren Jimin Niu Chunji Pei Fengkui Wang Wenyun Ni Jiazan Changchun Institute of Applied Chemistry Academia Sinica Changchun |
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| Affiliation: | Ren Jimin,Niu Chunji,Pei Fengkui,Wang Wenyun,Ni Jiazan Changchun Institute of Applied Chemistry,Academia Sinica,Changchun 130022 |
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| Abstract: | ~(13)C and ~1H NMR technique was used to study the interaction of Gly-Gly withheavy lanthanide cations Dy~(3+), Ho~(3+), Er~(3+), Tm~(3+) and Yb~(3+) in aqueous solution. Thestability constants for the 1: 1 and 1: 2 complexes of Gly-Gly with Ho~(3+) and Yb~(3+)were determined from the titration curves of chemical shift versus concentration ratioof lanthanide to Gly-Gly. The solution structure of the Ln-Gly-Gly complex wasanalyzed based upon the ~(13)C and ~1H lanthanide-induced shifts and the results showthat in the complex Gly-Gly is coordinated to the lanthanide ion through the carboxyloxygens with the backbone of the ligand in an extended state. |
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| Keywords: | Glycyl-Glycine Lanthanide complex Solution structure Nuclear magnetic resonance |
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