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首页> 外文期刊>Indian Journal of Chemistry, Section A. Inorganic, Physical, Theoretical & Analytical >Computer augemented speciation studies of cobalt(II), copper(II) and zinc(II) complexes of L-glutamic in water-urea mixtures
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Computer augemented speciation studies of cobalt(II), copper(II) and zinc(II) complexes of L-glutamic in water-urea mixtures

机译:水-尿素混合物中L-谷氨酸钴(II),铜(II)和锌(II)配合物的计算机增强物种研究

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摘要

Speciation of Co(II), Cu(II) and Zn(II) complexes of L-glutamic acid has been studied in varying concentrations (0-36.83% w/w) of urea solutions maintaining an ionic strength of 0.16 mol dm~(-3) at 303 K. The protonation and formation constants are refined with the computer program, MINIQUAD75 using the primary alkalimetric data. Selection of the best fit chemical models is based on statistical parameters and residual analysis. The trend in variation in values of the protonation and the metal-ligand stability constants with the dielectric constant has been explained on the basis of electrostatic and non-electrostatic forces.
机译:研究了在浓度为(0-36.83%w / w)的尿素溶液中,离子浓度为0.16 mol dm〜()的L-谷氨酸的Co(II),Cu(II)和Zn(II)配合物的形态。 -3)在303K。质子化和形成常数通过计算机程序MINIQUAD75使用主要碱度数据进行精修。最佳拟合化学模型的选择基于统计参数和残差分析。已经基于静电力和非静电力解释了质子化值和金属配体稳定性常数随介电常数的变化趋势。

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