Complexation equilibria of oxy-acid-2-amino-2-deoxy-D-gluconic acid-metal(II) ion ternary systems in aqueous solution as studied by potentiometry. Binding characteristics of berate and germanate

Kanekiyo Y.; Koshino N.; Funahashi S.; Aizawa S.

首页> 外文期刊>Inorganica Chimica Acta >Complexation equilibria of oxy-acid-2-amino-2-deoxy-D-gluconic acid-metal(II) ion ternary systems in aqueous solution as studied by potentiometry. Binding characteristics of berate and germanate

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Complexation equilibria of oxy-acid-2-amino-2-deoxy-D-gluconic acid-metal(II) ion ternary systems in aqueous solution as studied by potentiometry. Binding characteristics of berate and germanate

机译：电位滴定法研究了水溶液中含氧-2-氨基-2-脱氧-D-葡萄糖酸-金属（II）离子三元体系的络合平衡。 berate和germanate的绑定特征

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The complexation equilibria for the boric acid-D-glucosaminic acid and D-glucosaminic acid-metal(II) ion binary systems, the boric acid-D-glucosaminic acid-metal(II) ion ternary system, and the corresponding binary and ternary systems with germanic acid instead of boric acid involving nickel(II), zinc(II), cadmium(II) and lead(II) as the metal(II) ion have been investigated in aqueous solution at 25 degrees C and I = 0.1 mol dm (3) (NaClO4) by potentiometric measurements (D-glucosaminic acid is 2-amino-2-deoxy-D-gluconic acid). The complexes have been characterized in aqueous solution by C-13 NMR spectra and the pK(a) values. The 1:2 ester of berate and D-glucosaminate shows a selectivity for metal(II) ions different from the free D-glucosaminate ligand. It has been demonstrated that the coordination site of the 1:2 ester can distinguish the difference in metal ion size. Such selectivity for metal(II) ions in the boric acid system is discussed by comparison with the germanic acid system. (C) 2000 Elsevier Science S.A. All rights reserved. [References: 42]

机译：硼酸-D-氨基葡萄糖酸-金属（II）离子二元体系，硼酸-D-氨基葡萄糖酸-金属（II）离子三元体系以及相应的二元和三元体系的络合平衡在25℃，I = 0.1 mol dm的水溶液中研究了用锗酸代替硼酸，涉及镍（II），锌（II），镉（II）和铅（II）作为金属（II）离子（3）通过电位测量法（NaClO 4）（D-葡糖胺酸为2-氨基-2-脱氧-D-葡糖酸）。配合物已在水溶液中通过C-13 NMR光谱和pK（a）值表征。贝酸酯和D-氨基葡萄糖的1：2酯对金属（II）离子的选择性与游离D-氨基葡萄糖的配体不同。已经证明1：2酯的配位点可以区分金属离子尺寸的差异。通过与锗酸体系比较，讨论了在硼酸体系中对金属离子的选择性。（C）2000 Elsevier Science S.A.保留所有权利。 [参考：42]

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《Inorganica Chimica Acta》 |2000年第2期|共11页
作者
Kanekiyo Y.; Koshino N.; Funahashi S.; Aizawa S.;
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正文语种 eng
中图分类生物体其他化学成分;无机化学;
关键词
Potentiometry; Metal complexes; Boric acid complexes; Germanic acid complexes; Magnetic-resonance spectroscopy; Borate esters; Germanium(iv) complexes; Macrocycle interaction; Molecular-structure; Alkaline media; Kinetic data; B-11 nmr; Cations; 18-crown-6;

机译：电位法;金属络合物;硼酸络合物;锗酸络合物;磁共振波谱;硼酸酯;锗（iv）络合物;大环相互作用;分子结构;碱性介质;动力学数据;B-11 nmr;阳离子;18冠-6;

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1. Complexation equilibria of oxy-acid-2-amino-2-deoxy-D-gluconic acid-metal(II) ion ternary systems in aqueous solution as studied by potentiometry. Binding characteristics of berate and germanate [J] . Kanekiyo Y., Koshino N., Funahashi S., Inorganica Chimica Acta . 2000,第2期

机译：电位滴定法研究了水溶液中含氧-2-氨基-2-脱氧-D-葡萄糖酸-金属（II）离子三元体系的络合平衡。 berate和germanate的绑定特征
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Complexation equilibria of oxy-acid-2-amino-2-deoxy-D-gluconic acid-metal(II) ion ternary systems in aqueous solution as studied by potentiometry. Binding characteristics of berate and germanate

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