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Effect of triton-X100 on ternary complexes of cobalt(II), nickel(II), copper(II) & zinc(II) with aspartic and citric acids

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Title Effect of triton-X100 on ternary complexes of cobalt(II), nickel(II), copper(II) & zinc(II) with aspartic and citric acids
 
Creator Rao, Pedada Srinivasa
Rao, Gollapalli Nageswara
 
Subject Triton-X 100
Stability constant
Citric acid
Aspartic acid
Ternary complexes
 
Description 236-242
A computer based investigation has been made pH-metrically on the chemical speciation of mixed ligand complexes in ternary systems consisting of cobalt(II), nickel(II), copper(II) and zinc(II) with aspartic and citric acids in various concentrations (0.0–2.5% v/v) of the triton-X 100 surfactant solution maintaining an ionic strength of 0.16 mol dm-3 with sodium hydroxide at 303.0+0.1 K. These ligands interact with the metal ions to form MLXH2-, MLX2H4- and MLX3- species. The trend of the variation in log β values with changing dielectric constant as well as with mole fraction of the surfactant is explained based on the electrostatic interactions of the side chains of the ligands, charge neutralization, chelate effect, stacking interactions and hydrogen bonding. The existence of different ternary species is established from modelling studies using the computer program MINIQUAD75. Distribution diagrams with different pH-compositions of surfactant and structures of plausible ternary complexes are also presented.
 
Date 2021-02-11T06:03:47Z
2021-02-11T06:03:47Z
2021-02
 
Type Article
 
Identifier 0975-0975(Online); 0376-4710(Print)
http://nopr.niscair.res.in/handle/123456789/56197
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJC-A Vol.60A(02) [February 2021]