Complex formation of FeIII, CuII, and ZnII with L-3-(3,4-dihydroxyphenyl)alanine in aqueous solutions

被引：0
作者：
Amirov, R. R. [1 ]
Mingazova, A. E. [1 ]
Ziyatdinova, A. B. [1 ]
Zhuravleva, Yu. I. [1 ]
Solodov, A. N. [1 ]
机构：
[1] Kazan Fed Univ, Kazan 420008, Russia
来源：
RUSSIAN CHEMICAL BULLETIN | 2014年 / 63卷 / 03期
关键词：
L-3-(3,4-dihydroxyphenyl)alanine; iron(III); copper(II); zinc(II); NMR relaxation; complex formation; stability constants; absorption spectra; METAL-ORGANIC FRAMEWORKS; ACIDIC PERCHLORATE-MEDIA; DOUBLY CHELATING LIGANDS; L-DOPA; CATECHOL DERIVATIVES; ADRENALINE; IRON(III); KINETICS; FE(III); IONS;
D O I：
10.1007/s11172-014-0489-7
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The states of the iron(iii), copper(ii), and zinc(ii) complexes with l-3-(3,4-dihydroxyphenyl)alanine in water were studied by spectrophotometry and nuclear magnetic relaxation. The spectral and magnetic relaxation parameters of the l-3-(3,4-dihydroxyphenyl)alanine complexes with iron(iii) ions were determined. The compositions and stability constants of the complexes were found by the mathematical simulation of the obtained data. The conclusions about the formation of a series of homo- and heterobinuclear complexes were made on the basis of an analysis of changes in the optical spectra and values of relaxation efficiency of solutions in systems iron(iii)-l-3-(3,4-dihydroxyphenyl)alanine-M-II (M-II = Cu-II, Zn-II).
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页码：662 / 672
页数：11
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