Binary and Ternary Oxovanadium (IV) Complexes with Picolinic Acid and Some Potentially Bidentate Amino Acids Studied by Potentiometric Measurements in 1.0 mol•dm-3 NaCl at 25 °C

被引：1
|
作者：
Rodriguez, Sabrina [1 ]
Araujo, Mary Lorena [2 ]
Del Carpio, Edgar [3 ]
Hernandez, Lino [1 ]
Lubes, Vito [1 ]
机构：
[1] Univ Simon Bolivar, Chem Dept, Caracas, Venezuela
[2] Univ Cent Venezuela UCV, Escuela Quim, Fac Ciencias, Ctr Equilibrios Soluc, Caracas, Venezuela
[3] Univ Cent Venezuela UCV, Escuela Dr Jesus Maria Bianco, Fac Farm, Unidad Quim Med, Caracas, Venezuela
来源：
JOURNAL OF SOLUTION CHEMISTRY | 2024年 / 53卷 / 02期
关键词：
Oxovanadium (IV) complexes; Stability constants; Picolinic acid; Amino acids; Speciation; TRANSITION-METAL; SPECIATION; CHEMISTRY; VANADIUM; COPPER(II); STABILITY; CATALYSTS; IONS;
D O I：
10.1007/s10953-023-01331-x
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The chemical speciation of binary and ternary VO2+-picolinic acid (HPic) complexes with the amino acids: Leucine (Leu, HL), Isoleucine (Ile, HL), Valine (Val, HL), Tryptophan (Thr, HL), Glutamine (Gln, HL), Lysine (Lys, HL), Arginine (Arg, HL) and Tyrosine (Tyr, H2L) were obtained. This study was performed by potentiometric titrations at 25 degrees C using 1.0 mol<middle dot>dm(-3) NaCl as the ionic medium. The experimental data were analyzed with the least squares program LETAGROP, and the respective distribution diagrams were obtained with the HYSS program. The relative stability parameters Delta log(10) K, log(10) X and %R.S were determined.
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收藏
页码：314 / 327
页数：14
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