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Title of Journal: J Solution Chem

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Abbravation: Journal of Solution Chemistry

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Springer US

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DOI

10.1016/0168-9525(94)90090-6

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1572-8927

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Complexation Studies of Pyridyl Sulfonamide Ligand

Authors: Ritu Kataky Mark A Knell
Publish Date: 2009/10/20
Volume: 38, Issue: 11, Pages: 1483-
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Abstract

Ligand protonation and stepwise dissociation constants formation constants and speciation of four pyridyl sulfonamide ligands Congreeve et al New J Chem 2798–106 2003 were assessed using potentiometric and UV/Visible spectrophotometric pH titrations in 80 MeOH − 20 H2O The suitability of these ligands as CuII and ZnII sensors for physiological applications was assessed Two ligands L1 and L4 were ptoluenesulfonamide derivatives while L2 and L3 were triflurosulfonamide derivatives Additionally L3 and L4 were appended with αmethyl groups The most stable complex was formed by L1 with CuII owing to the fact that this complex was square planar log 10  K 1=1215±0004 and log 10  β 2=1542±0006 The rest of the complexes invariably formed distorted tetrahedron geometry and complexation was weaker Speciation diagrams show the effect of ligand to metal concentration revealing that the L2 and L3 ligands are the most suitable for forming ML2 complexes at physiological pH

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Other Papers In This Journal:
  1. Ab Initio Molecular Dynamics Simulation of Infrared Absorption Spectra of H 3 O + and H 5 O 2 + in Nonaqueous Solutions of Trifluoromethanesulfonic Acid Hydrates
  2. Modified Screen-Printed Electrode for Potentiometric Determination of Copper(II) in Water Samples
  3. Inclusion Complexes of Cyclodextrins with Galangin: a Thermodynamic and Reactivity Study
  4. Determination of Activation Energy for the Diffusion of Fe 3+ Ions in Agar Gel Medium Containing Various Transition Metal Sulfates
  5. NMR Study of the Exchange Kinetics of 30-Crown-10 Complexes with Sr 2+ and Ba 2+ Cations and Crystal Structure of the 30-Crown-10 Complex with Barium Perchlorate
  6. A Study of the Excess Properties of Aliphatic Chlorinated Compounds with Benzylalcohol at Various Temperatures
  7. Liquid–Liquid Equilibria of the Methanol + Toluene + Methylcyclohexane Ternary System at 278.15, 283.15, 288.15, 293.15, 298.15 and 303.15 K
  8. Complexation of Am(III) and Nd(III) by 1,10-Phenanthroline-2,9-Dicarboxylic Acid
  9. Diffusion Coefficients for the Ternary System Water + Chloroform + Acetic Acid at 25 °C
  10. Binding Mechanism of Bioactive Cetirizine Hydrochloride to Sudlow’s Site I of Serum Albumins
  11. Electroluminescent Properties of LECs Based on Ionic Transition Metal Complexes Using Tetrazole-Based Ancillary Ligand
  12. High-Pressure Densities and Derived Volumetric Properties (Excess, Apparent and Partial Molar Volumes) of Binary Mixtures of Methanol + [BMIM][PF 6 ]
  13. Solvent Effects on the Protonation Constants of Some α -Amino Acid Esters in 1,4-Dioxane–Water Mixtures
  14. Lanthanide Complexes with Allyl Acetoacetate in Mixed Water–Organic Media: Formation, Stability and Bonding
  15. A Study on Host–Guest Complexation of 5-Amino-2-Mercaptobenzimidazole with β -Cyclodextrin
  16. The Mixing Enthalpy Interaction Coefficients of N , N ′-Hexamethylenebisacetamide with l -Alanine and l -Serine in Aqueous Glucose Solutions at 298.15 K
  17. Effect of Temperature on Salt–Salt Aqueous Biphasic Systems: Manifestations of Upper Critical Solution Temperature
  18. Studies on Intermolecular Interactions in Liquid Mixtures of Alkoxyalkanols and Branched Alcohols by Volumetric and Acoustic Measurements at Different Temperatures
  19. Li + Transport Mechanism in Oligo(Ethylene Oxide)s Compared to Carbonates
  20. Thermodynamics of concentrated electrolyte mixtures. I. Activity coefficients in aqueous NaCl−CaCl 2 at 25°C
  21. Study of the Association Behavior Between Bromophenol Blue and Octylphenol Polyoxyethylene Ether (10) in Aqueous Solution and the Solubilization of Bromophenol Blue by Micelles
  22. Kinetics and Mechanism of the Reactions Between Triphenylphosphine, Dialkyl Acetylenedicarboxilates and a NH-Acid, Pyrazole, by UV Spectrophotometry
  23. Isopiestic Determination of the Osmotic and Activity Coefficients of Li 2 SO 4 (aq) at T =298.15 and 323.15 K, and Representation with an Extended Ion-Interaction (Pitzer) Model
  24. Volumetric and Transport Properties of Ternary Mixtures Containing 1-Butanol or 1-Pentanol, Triethylamine and Cyclohexane at 303.15 K: Experimental Data, Correlation and Prediction by the ERAS Model
  25. First Hydrolysis Constant of Lutetium (III) by Solvent Extraction
  26. Volumetric Properties of the Nucleoside Thymidine in Aqueous Solution at T = 298.15 K and p = (10 to 100) MPa
  27. Spinodal Composition of the System Water + Chloroform + Acetic Acid at 25 °C
  28. A Thermodynamic Study on the Binding of Cobalt(II) and Iron(III) Ions with Bovine Carbonic Anhydrase II at Different Temperatures
  29. Solubility of Omeprazole Sulfide in Different Solvents at the Range of 280.35–319.65 K
  30. Chemical Equilibria Modeling of Calcium Phosphate Precipitation and Transformation in Simulated Physiological Solutions
  31. Isopiestic Determination of the Osmotic and Activity Coefficients of the { y Na 2 HPO 4 + (1 −  y )K 2 HPO 4 }(aq) System at T = 298.15 K
  32. Ionic Strength Effect on the Stability of the V(V) + IDA Complex
  33. Viscosities for Ionic Liquid Binary Mixtures with a Common Ion
  34. Kinetics and Mechanism for Hydrolysis of α -Amino Acid Esters in Mixed Ligand Complexes with Zn(II)–Nitrilo-tris(methyl phosphonic Acid)
  35. The Oxidation of Iron(II) with Oxygen in NaCl Brines
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