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Studies on the mechanism of ion-pair extraction and application to simultaneous determination of multi elements

离子对萃取机理及其在多元素同时测定中的应用研究

基本信息

批准号：
13640600
负责人：
SAWADA Kiyoshi
金额：
$ 1.98万
依托单位：
NIIGATA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640600/
关键词：
solvent extraction polyether ion-pair NMR phthalocyanine emission spectra tetraalkvlammonium EDTA 生分解性キレート剤

项目摘要

1.Extraction and structure of polyether complexes of metal ions.The extraction of alkali, alkaline earth, divalent transition metal ions with monodispersed polyether derivates has been studied. The extraction of three component complexes of divalent transition metal and rare earth metal complex of β-diketone with polyether compounds has also been studied.Detailed structures of the complexes have been investigated by means of NMR spectroscopy The effect of ionic radius and number of the charge of the metal ion on the structure was elucidated.2.Synthesis and reaction of phthalocyanines substituted by polyether.Polyether-phthalocyanines, where the phthalocyanine was substituted by metyltrioxyethlene or dodecylhexaoxyethylene, have been synthesized. As expected, these derivatives are amphiphilic. The electronic spectra of the compounds were measured in wide range of solvents. The solvent effect on stacking of the compound has been investigated. The structures of the complexes of the compounds with alkali metal ions were estimated by means of NMR spectroscopy.3.Extraction of EDTA cpmplex and development of biodegradative chelate reagents.The extraction mechanism of the transition metal complexes of non-degradative ligand EDTA with tetraalkylammonium ion was studied. The new type of biodegradative chelating agents were developed. The stabilities of the metal complexes of some of these ligands were very high and comparable to the EDTA complex. The application of them to actual industrial systems has been studied.

1.金属离子聚醚络合物的萃取与结构研究了单分散聚醚衍生物对碱金属、碱土金属、二价过渡金属离子的萃取。本文还研究了二价过渡金属和稀土金属与β-二酮的三元配合物与聚醚类化合物的萃取，用核磁共振谱研究了配合物的详细结构，阐明了离子半径和金属离子的电荷数对配合物结构的影响。2.聚醚取代酞菁的合成与反应。其中酞菁被甲基三氧乙烯或十二烷基六氧乙烯取代。正如预期的那样，这些衍生物是两亲性的。在较宽的溶剂范围内测定了化合物的电子光谱。研究了溶剂对化合物堆积行为的影响。用核磁共振谱对化合物与碱金属离子配合物的结构进行了表征。3. EDTA络合物的萃取及生物降解性螯合剂的研制研究了非降解配体EDTA与四烷基铵离子的过渡金属络合物的萃取机理。开发了新型的可生物降解螯合剂。这些配体中的一些的金属络合物的稳定性非常高，并且与EDTA络合物相当。研究了它们在实际工业系统中的应用。