Determination of species distribution and formation constants of complexes between ion Cu2+ and Amino acids using multivariate regression analysis

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In present work, the formation constants, logb110, logb120 and the concentration of [M] and [MLi] in complex solutions of Cu2+  and the amino acids were determined by using the quantitative electron structure and properties relationships (QESPRs) and quantitative complex and complex relationships (QCCRs). The relative charge nets for complex structures were calculated by using molecular mechanics MM+ and semiempirical quantum chemistry calculations ZINDO/1. The QESPRs and QCCRs models were constructed by the atomic charge net on complex structures and the multivariate regression analysis. These were employed for approximate determination the formation constants logb110, logb120  and the distribution diagram of species [M], [ML ] in various solutions. These results were compared with those from literature [[3]]. They were also validated by the statistical method ANOVA. The dissimilarities between these models and experimental data are insignificant.