[PDF][PDF] Potentiometric and spectroscopic studies of sulfonamide azo-dye complexes with some transition metal ions and uranium

EH El-Mossalamy - Portugaliae Electrochimica Acta, 2009 - peacta.org
Molecular structure of the azo-dye derived from sulfonamide was synthesized. The
elucidation of ligand and complex structures were studied by electronic, infrared and 1H …

[PDF][PDF] Thermodynamics of the complexation of some transition metal ions with trithiocarbodiglycolic acid. Potentiometric and voltammetric studies

AA El-Bindary, IS Shehatta… - Monatshefte für Chemie …, 1994 - researchgate.net
Proton-ligand dissociation and metal-ligand stability constants of trithiocarbodiglycolic acid
(TCGA) with some transition metal ions were calculated potentiometrically. The order of …

Thermodynamics of substituted rhodanine. Part 1. Temperature, medium and substituent effects on the dissociation constants of 3-benzamidorhodanine and its …

I Shehatta, AA El-Bindary - Thermochimica acta, 1994 - Elsevier
The dissociation constants of 3-benzamidorhodanine and its substituted derivatives have
been determined potentiometrically and spectrophotometrically. The data are discussed in …

Thermodynamik von substituiertem Rhodanin II: Binäre Komplexe von Th(IV), UO2(II), Ce(III) und La(III) mit 3-Benzamidorhodanin und seinen Derivaten

AA El-Bindary, I Shehatta - Monatshefte für Chemie/Chemical Monthly, 1994 - Springer
Summary Th (IV), UO 2 (II), Ce (III) and La (III) chelates with 3-benzamidorhodanine and its
derivatives have been investigated potentiometrically in 0.1 M KCl and 20%(v/v) ethanol …

Effect of Preferential Solvation on the Thermodynamic Properties of Antidepressant Drug Trazodone in Aqueous Ethanol: Linear Free‐Energy Relationships

I Shehatta - Helvetica chimica acta, 2002 - Wiley Online Library
Dissociation constants (pKa) of trazodone hydrochloride (TZD⋅ HCl) in EtOH/H2O media
containing 0, 10, 20, 30, 40, 50, 60, 70, and 80%(v/v) EtOH at 288.15, 298.15, 308.15, and …

Preferential solvation in 2-propanol/water mixtures: Relationship between solvatochromic parameters and ionization and transfer thermodynamics of nalidixic acid …

I Shehatta - 2002 - degruyter.com
Precise ionization constants for nalidixic acid have been obtained in various binary 2-
propanol/water mixtures at four different temperatures using a potentiometric method. The …

Thermodynamic of transfer and preferential solvation of antibiotic cephradine in 1, 4-dioxane-water mixtures

I Shehatta - 2001 - degruyter.com
The ionization constants of cephradine in 0, 10, 20, 30, 40, 50, 60, 70, 80 and 90%(v/v) 1, 4-
dioxane-water mixed solvents were determined using a potentiometric technique and an …

Thermodynamics of Substituted Hydrazone and Its Fe3+, UO22+, Cu2+ and Zn2+ Complexes. Potentiometric and Voltammetric Studies

I Shehatta - Zeitschrift für Physikalische Chemie, 1994 - degruyter.com
1. Introduction In our previous studies [1—3], the thermodynamics for the complexation of a-
cyclodextrine with many straight chain alkanols and,-alkanediols. and substituted …

Thermodynamics of dissociation and metal complexation of 3-nitro-1, 5-diphenylformazan

I Shehatta, AM Kiwan - Journal of solution chemistry, 2001 - Springer
Thermodynamic parameters for dissociation of 3-nitro-1, 5-diphenylformazan and its
complexation by some divalent metal ions were determined in a 50%(v/v) dioxane–water …

Thermodynamische und voltammetrische Untersuchungen an Salicylaldehyd-4-(2-pyridyl)-3-thiosemicarbazon

IS Shehatta, AM Hassanein, EM Mabrouk - Monatshefte für Chemie …, 1995 - Springer
UV spectra, dc polarograms, cyclic voltammetry and coulometry measurements of
salicylaldehyde-4-(2-pyridyl)-3-thiosemicarbazone (H 2 SPT) were recorded in Britton …