| 1,3-丙二胺四乙酸配合物分子内交换过程的研究 |
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| 引用本文： | 宋瑞方,方谅.1,3-丙二胺四乙酸配合物分子内交换过程的研究[J].波谱学杂志,1992,9(2):113-119. |
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| 作者姓名： | 宋瑞方 方谅 |
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| 作者单位： | 吉林大学理论化学研究所, 长春 130023 |
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| 基金项目： | 国家自然科学基金资助课题 |
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| 摘 要： | 本文研究了Zn,Cd和Hg-1,3PDTA (1,3-丙二胺四乙酸)配合物的分子内交换过程的动力学.实验结果表明Mg,Ca和Sr-1,3PDTA配合物其配位健具有较大的迁移性,而Zn、Cd和Hg配合物分子内健的迁移性较小,属于长寿命的配位健.用全线型分析方法模拟了Zn、Cd和Hg配合物随温度变化的1H NMR谱,得到了有关分子内过程的热力学参数.并讨论了N原子反转过程的活化能与中心金属离子的离子势之间的关系.
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| 关 键 词： | 1 3-PDTA金属配合物 DNMR |
| 收稿时间： | 1991-07-05 |
THE STUDY ON THE DNMR SPECTRA OF Zn(Ⅱ), Cd(Ⅱ) AND Hg(Ⅱ)-1,3PDTA COMPLEXES |
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| Song Rui fang,Li Liang and Li Fei.THE STUDY ON THE DNMR SPECTRA OF Zn(Ⅱ), Cd(Ⅱ) AND Hg(Ⅱ)-1,3PDTA COMPLEXES[J].Chinese Journal of Magnetic Resonance,1992,9(2):113-119. |
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| Authors: | Song Rui fang Li Liang and Li Fei |
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| Institution: | Institute of Theoretical Chemistry, Jilin University, Changchun 130023 |
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| Abstract: | Reported here are the DNMR spectra of intramolecular processes of some diamagnetic complexes which were synthesized by the reactions of Zn(Ⅱ), Cd(Ⅱ) and Hg(Ⅱ) with 1,3PDTA (1,3-propanediaminetetraacetic acid), respectively. The rate constants and other thermodynamic parameters were obtained by the complete line shape anaylsis. The intramolecular exchange processes are discussed in this paper. It was found that the activation energies of these metal complexes are related to the electrostatic potential of the metal ions. |
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| Keywords: | Zn Cd and Hg-1 3 PDTA complexes Intramolecular exchange DNMR |
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