Speciation Studies of Binary and Ternary Complexes Formed with Fe(II) Ion, Picolinic Acid, and Several Amino Acids

被引：1

作者：

Rodriguez, Ramon ^{[1
]}

Gonzalez, Rosliana ^{[1
]}

Araujo, Mary Lorena ^{[2
]}

Del Carpio, Edgar ^{[3
]}

Lubes, Vito Rocco ^{[1
]}

Mazzocchin, Lino Antonio Hernandez ^{[1
]}

机构：

[1] Univ Simon Bolivar, Dept Quim, Lab Equilibrios Soluc, Caracas 1080 A, Venezuela

[2] Univ Cent Venezuela, Escuela Quim, Fac Ciencias, Ctr Equilibrios Soluc, Caracas 1050, Venezuela

[3] Univ Cent Venezuela UCV, Escuela Dr Jesus Maria Bianco, Fac Farm, Dept Quimiconalit,Catedra Quim Organ 1, Caracas 1050, Venezuela

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2023年 / 69卷 / 01期

关键词：

THERMODYNAMIC CONSIDERATIONS; IRON(II); EQUILIBRIA; COPPER(II); NICKEL(II); PARAMETERS; COBALT(II); STABILITY; CONSTANTS;

D O I：

10.1021/acs.jced.3c00610

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study, we investigate the chemical speciation of ternary complex systems involving Fe(II) ions, picolinic acid (HPic), and various amino acids, including alpha-alanine (H alpha Ala), beta-alanine (H beta Ala), glycine (HGly), leucine (HLeu), lysine (HLys), methionine (HMet), phenylalanine (HPhe), serine (HSer), threonine (HThr), valine (HVal), proline (HPro), and histidine (H(2)His). Potentiometric titrations were conducted in an aqueous solution at 25 degrees C using a 1 mol dm(-3) NaCl solution as the ionic medium. Data analysis was performed using the least-squares program LETAGROP. Our study also encompasses the investigation of Fe(II) hydrolysis products (hydroxylated complexes) and binary complexes formed by Fe(II) with picolinic acid and individual amino acids, all in aqueous solution at 25 degrees C, employing a 1.0 mol dm(-3) NaCl medium. Species distribution diagrams were generated, and the relative stability parameter Delta log(10) K was calculated. These findings are significant for the potential design and application of novel Fe(II) complexes in various fields.

引用

页码：163 / 170

页数：8

共 39 条

[1] QUANTITATIVE STUDIES OF THE AVIDITY OF NATURALLY OCCURRING SUBSTANCES FOR TRACE METALS .1. AMINO-ACIDS HAVING ONLY 2 IONIZING GROUPS [J].

ALBERT, A .

BIOCHEMICAL JOURNAL, 1950, 47 (05) :531-538

[2] Hyperquad simulation and speciation (HySS): a utility program for the investigation of equilibria involving soluble and partially soluble species [J].

Alderighi, L ;

Gans, P ;

Ienco, A ;

Peters, D ;

Sabatini, A ;

Vacca, A .

COORDINATION CHEMISTRY REVIEWS, 1999, 184 :311-318

[3] PYRIDINDERIVATE ALS KOMPLEXBILDNER .1. PYRIDINCARBONSAUREN [J].

ANDEREGG, G .

HELVETICA CHIMICA ACTA, 1960, 43 (01) :414-424

[4]

[Anonymous], 2013, IUPAC STABILITY CONS

[5]

BIEDERMANN G, 1953, ARK KEMI, V5, P425

[6]

Bolzan J.A., 1963, Electrochimica Acta, V8, P375, DOI DOI 10.1016/0013-4686(63)80066-3

[7] COMPLEX-FORMATION BETWEEN GLYCINE AND MAGNESIUM(II), CALCIUM(II), AND IRON(II) AT 25-DEGREES-C IN 3.00 M NACLO4 [J].

BOTTARI, E ;

PORTO, R .

MONATSHEFTE FUR CHEMIE, 1982, 113 (11) :1245-1252

[8] Emf(H) data analysis of weak metallic complexes using reduced formation functions [J].

Brito, F ;

Araujo, ML ;

Lubes, V ;

D'Ascoli, A ;

Mederos, A ;

Gili, P ;

Domínguez, S ;

Chinea, E ;

Hernández-Molina, R ;

Armas, MT ;

Baran, EJ .

JOURNAL OF COORDINATION CHEMISTRY, 2005, 58 (06) :501-512

[9] Speciation of the Ternary Cobalt(II) Picolinic and Dipicolinic Acid Complexes with Small Bioligands [J].

Chacon, Bernardo ;

Lorena Araujo, Mary ;

Hernandez Mazzocchin, Lino Antonio ;

Lubes, Vito .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2023, 68 (07) :1638-1645

[10]

Day R. A., 1986, Quantitative analysis, V5

← 1 2 3 4 →