| The Study on the Stability Constant and Species Distribution of Eu (III) and Tb (III) Complexes with BDBPH |
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| 作者姓名： | Guo Qiang SHANGGUAN Jun ZH U Ning WANG Jia Zuan NI |
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| 作者单位： | Guo Qiang SHANGGUAN1，3，Jun ZH U1，Ning WANG1，Jia Zuan NI2 1Department of Chemistry，Jining Medical College，Jining 272013 2Key Laboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022 3Graduate School of Chinese Academy of Sciences，Beijing 100039 |
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| 摘 要： | Biomimetic hydrolysis of DNA or RNA is of increasing importance in biotechnology and medicine. The ability to cleave nucleic acids efficiently, in a non-degradative manner, and with high levels of selectivity for site or structure will be required by many applications for the manipulation of genes, the design of structural probes and the development of novel therapeutics1. There has been much interest in the development of lanthanide complexes as nucleic acid cleavage agents. It has been fou…
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The Study on the Stability Constant and Species Distribution of Eu (III) and Tb (III) Complexes with BDBPH |
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| Guo Qiang SHANGGUAN,,Jun ZH U,Ning WANG,Jia Zuan NI .The Study on the Stability Constant and Species Distribution of Eu (III) and Tb (III) Complexes with BDBPH[J].Chinese Chemical Letters,2005(12). |
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| Authors: | Guo Qiang SHANGGUAN Jun ZH U Ning WANG Jia Zuan NI |
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| Institution: | Guo Qiang SHANGGUAN1,3,Jun ZH U1,Ning WANG1,Jia Zuan NI2 1Department of Chemistry,Jining Medical College,Jining 272013 2Key Laboratory of Rare Earth Chemistry and Physics,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022 3Graduate School of Chinese Academy of Sciences,Beijing 100039 |
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| Abstract: | The stability constants and species distributions of complexes of two lanthanide ions, Eu(III) and Tb(III), with a macrocyclic ligand, BDBPH, in 1:1 and 2:1system, were determined potentiometrically at 25.0 oC and I=0.100 mol L-1. The two metal ions could form deprotonated mono- or dinuclear complexes with BDBPH after the first two protons of the ligand completely neutralized. At higher pH values, Eu(III) could not form hydroxy complexes with BDBPH, while Tb(III) could form hydroxy complexes in the type of M2L(OH), M2L(OH)2, and M2L(OH)3. |
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| Keywords: | BDBPH Eu(III) Tb(III) stability constant species distribution |
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