Effect of tetrabutylammoniumbromide(TBAB) on protonation equilibria of succinic acid and L-glutamine

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Title Effect of tetrabutylammoniumbromide(TBAB) on protonation equilibria of succinic acid and L-glutamine
 
Creator Adhikamsetty, Ramakrishna
Prasad, U. S. N.
 
Subject MINIQUAD75
TBAB
succinic acid
L-glutamine
speciation
complex equilibria
Acids
 
Description Effect of tetrabutylammoniumbromide(TBAB) on protonation equilibria of L-glutamine (Gln) and succinic acid (Suc) in varying concentrations (0.0-3.0%, w/v) of TBAB-water mixtures at an ionic strength of 0.16 mol dm-3 and temperature 303K has been made using a pH-meter. Various models for the species of these ligards are refined by using the computer programs SCPHD and MINIQUAD75.  The active forms of the ligands are LH2 and LH- for succinic acid and LH2+ and LH for L-glutamine. The trend in the variation of protonation constants with dielectric constant is explained on the basis of electrostatic and non-electrostatic forces. The species distribution with pH at different solvent composition and the plausible equilibria for the formation of the species are also presented.
 
Publisher PURKH
 
Date 2020-12-31
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://purkh.com/index.php/tochem/article/view/898
 
Source To Chemistry Journal; Vol. 7 (2020); 15-20
2581-7507
 
Language eng
 
Relation https://purkh.com/index.php/tochem/article/view/898/832
 
Rights Copyright (c) 2020 Ramakrishna Adhikamsetty, U. S. N. Prasad
https://creativecommons.org/licenses/by/4.0
 

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