Temperature, medium and structural effects on the acid dissociation constants of certain Schiff bases derived from isatin with some amino acids and aroylhydrazines

1993 ◽  
Vol 16 (3) ◽  
pp. 180-185
Author(s):  
Aly M. A. Hassaan ◽  
M. T. A. Quenawy
Keyword(s):  
Amino Acids ◽  
Schiff Bases ◽  
Dissociation Constants ◽  
Acid Dissociation ◽  
Structural Effects ◽  
Acid Dissociation Constants

scholarly journals Methylmercury(II) sulfhydryl interactions. Potentiometric determination of the formation constants for complexation of methylmercury(II) by sulfhydryl containing amino acids and related molecules, including glutathione

1983 ◽  
Vol 61 (7) ◽  
pp. 1428-1434 ◽  
Author(s):  
Alan P. Arnold ◽  
Allan J. Canty
Keyword(s):  
Amino Acids ◽  
Dissociation Constants ◽  
Formation Constants ◽  
Low Ph ◽  
Acid Dissociation ◽  
Mercaptoacetic Acid ◽  
Cationic Complex ◽  
Acid Dissociation Constants ◽  
Mercaptosuccinic Acid

Formation constants for the interaction of methylmercury(II) with 2-mercaptoethanol, mercaptoacetic acid, O-methyl-mercaptoacetate, 2-mercaptosuccinic acid, L-cysteine, D,L-penicillamine, N-acetyl-D,L-penicillamine, glutathione, thiocholine, and 4-mercapto-N-methylpiperidine have been determined by potentiometric titration. For the equilibrium [Formula: see text], log β occurs in the range 14.60(1)–17.14(1), with the lowest value obtained for the cationic complex of thiocholine, [Formula: see text]. Acid dissociation constants for the ligands are reported. Formation constants for the addition of both one and two equivalents of MeHg(II) to L-cysteine have been determined, giving log K ca. 4.1 for the reaction[Formula: see text]occurring at low pH, and log K 8.8 for the reaction[Formula: see text]occurring at higher pH.

scholarly journals Determination and evaluation of acid dissociation constants of some novel benzothiazole Schiff bases and their reduced analogs by spectroscopy

ARKIVOC ◽  
2009 ◽  
Vol 2009 (7) ◽  
pp. 197-209 ◽  
Author(s):  
Cemil Öğretir ◽  
Kamuran Görgün ◽  
Müjgan Özkütük ◽  
Handan Can Sakarya
Keyword(s):  
Schiff Bases ◽  
Dissociation Constants ◽  
Acid Dissociation ◽  
Acid Dissociation Constants
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