Studies on the stability of polyazamacrocycle-Eu (Tb) by potentiometry and its catalytic hydrolysis on phosphate diester
文献类型：期刊论文
| 作者 | Shangguan GQ ; Qu XG |
| 刊名 | chinese journal of analytical chemistry
 |
| 出版日期 | 2006 |
| 卷号 | 34期号:1页码:10-15 |
| 关键词 | MACROCYCLIC COMPLEXES ALCOHOL-PENDANT METAL-COMPLEXES DNA CLEAVAGE ZINC(II) LIGAND RNA |
| ISSN号 | 0253-3820 |
| 通讯作者 | qu xg |
| 中文摘要 | the stability constants and species distributions of complexes of two lanthanide ions, eu (iii) and tb(iii), with a macrocyclic ligand, 3,6, 9, 17 20, 23-hexaazo-29, 30-dihydroxy-13, 27-dimethyl-tricylco-[23,3,1,1(11,15)] triaconta-1 (28) 11,13,15 (30), 25 26-hexane (bdbph), in 1: 1 and 2: 1 system, were determined potentiometrically in 50% ethanol solution, at 35.0 degrees c and i = 0.100 mol/l (kcl). the two metal ions could form deprotonated mono- or dinuclear complexes with bdbph with high stability after the three protons of the ligand completely neutralized. at higher ph values, eu(m) could not form hydroxo complexes with bdbph, while tb(iii) could form hydroxo complexes in the types of m2l(oh) m2l(oh)(2) and m2l (oh)(2). the kinetic study on the hydrolysis reaction of his (4-nitrophenyl) phosphate (bnpp) catalyzed by tb-bdbph system (2:1) was carried out in aqueous solution (ph 7.0 similar to 10.0) at 35 degrees c with i = 0.1000 mol/l (kcl). the second-order rate constant k(bnpp) (2.3 x 10(-3) (mol/l)(-1)center dot s(-1)) was determined. the dinuclear monohydroxo species, l-tb-2-oh, is kinetically active species. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235054900003 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16945]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Shangguan GQ,Qu XG. Studies on the stability of polyazamacrocycle-Eu (Tb) by potentiometry and its catalytic hydrolysis on phosphate diester[J]. chinese journal of analytical chemistry,2006,34(1):10-15. |
| APA | Shangguan GQ,&Qu XG.(2006).Studies on the stability of polyazamacrocycle-Eu (Tb) by potentiometry and its catalytic hydrolysis on phosphate diester.chinese journal of analytical chemistry,34(1),10-15. |
| MLA | Shangguan GQ,et al."Studies on the stability of polyazamacrocycle-Eu (Tb) by potentiometry and its catalytic hydrolysis on phosphate diester".chinese journal of analytical chemistry 34.1(2006):10-15. |
入库方式： OAI收割
来源：长春应用化学研究所
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