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当络合物呈离子状态存在或金属螯合物分子中含有强烈电离的亲水性基团时,易被水化而溶解于水。当它们与某些带有相反电荷的质点相结合而形成离子缔合物时,则赋予反应产物许多新的性质,这些性质在科学研究和分析化学实践中具有重要意义。近十多年来,关于这类化合物的组成、结构、特性、它们分子中化学键的特征,缔合物形成反应的趋势及其反应动力学等基础理论问题,以及这类化合物在各种领域、特别是在分析化学中的应用等的研究迅速发展,并且已取得了许多成效。
When the complex exists in an ionic state or the metal chelate molecule contains a strongly ionized hydrophilic group, it is easily hydrated and dissolved in water. When they are combined with some of the oppositely charged particles to form an ion association, many new properties are imparted to the reaction product, and these properties are of great importance in scientific research and analytical chemistry. In the recent ten years, with regard to the composition, structure and properties of these compounds, the characteristics of chemical bonds in their molecules, the tendency of the formation of association compounds and their reaction kinetics and other basic theoretical issues, and their applications in various fields, Especially in the analytical chemistry applications such as the rapid development of research and has achieved a lot of results.