Results 1 to 10 of about 625,745 (242)

Stability Constant and Potentiometric Sensitivity of Heavy Metal–Organic Fluorescent Compound Complexes: QSPR Models for Prediction and Design of Novel Coumarin-like Ligands [PDF]

open access: yesToxics, 2023
Industrial wastewater often consists of toxic chemicals and pollutants, which are extremely harmful to the environment. Heavy metals are toxic chemicals and considered one of the major hazards to the aquatic ecosystem.
Phan Thi Diem-Tran   +12 more
doaj   +2 more sources

Stopped Flow Kinetics of MnII Catalysed Periodate Oxidation of 2, 3- dimethylaniline - Evaluation of Stability Constant of the Ternary Intermediate Complex

open access: goldBulletin of Chemical Reaction Engineering & Catalysis, 2015
The formation of ternary intermediate unstable complex during the oxidation of aromatic amines by periodate ion catalysed by MnII has been proposed in case of some anilines.
Rajneesh D. Kaushik   +4 more
doaj   +3 more sources

Stability of the barium–benzo-15-crown-5 complex in nitrobenzene saturated with water [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
From extraction experiments and g-activity measurements, the exchange extraction constant corresponding to the equilibrium Ba2+(aq) + SrL22+(nb) D BaL22+(nb) + Sr2+(aq) occurring in the two-phase water–nitrobenzene system (L =benzo-15-crown-5; aq ...
E. MAKRLÍK, P. VAŃURA
doaj   +3 more sources

Spectrophotometric study of Co(II), Ni(II), Cu(II), Zn(II), Pd(II) and Hg(II) complexes with isatin-β-thiosemicarbazone [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
The composition and stability of the complexes of isatin-β-thiosemicarbazone with Co(II), Ni(II), Cu(II), Zn(II), Pd(II) and Hg(II) have been investigated using spectrophotometric method at 30°C and constant ionic strength of 0.1 mol dm-3 (KNO3) in 70 ...
Konstantinović Sandra S.   +3 more
doaj   +1 more source

The Role of Side Chains in the Fine-Tuning of the Metal-Binding Ability of Multihistidine Peptides

open access: yesMolecules, 2022
The systematic studies of copper(II), nickel(II) and zinc(II) ion complexes of protected multihistidine peptides containing amino acids with different side chains (Ac-SarHAH-NH2, Ac-HADH-NH2, Ac-HDAH-NH2, Ac-HXHYH-NH2 X, Y = A, F, D or K, Ac-HXHAHXH-NH2,
Enikő Székely   +7 more
doaj   +1 more source

Complexation of Gold(III) with Pyridoxal 5′-Phosphate-Derived Hydrazones in Aqueous Solution

open access: yesMolecules, 2022
Today, complexes of gold(I) and gold(III) are recognized as promising drugs for the treatment of bacterial infectious diseases and oncological diseases, respectively.
Natalia N. Kuranova   +3 more
doaj   +1 more source

COMPLEX-FORMING PROPERTIES OF SYNTHETIC PYRIMIDINONE NUCLEOSIDES WITH Ag(I) IONS IN AN AQUEOUS SOLUTION [PDF]

open access: yesActa Poloniae Pharmaceutica, 2023
The present work describes the complexation properties of two synthetic nucleosides (used as ligands), i.e. β-D-ribofuranoside-4-pyrimidinone (ribo) and β-D-deoxyribofuranoside-4-pyrimidinone (deoxy) with Ag(I) ions in aqueous solution.
Marek Pająk   +5 more
doaj   +1 more source

THEORETICAL AND EXPERIMENTAL STUDY OF MACROMOLECULAR NANOSTRUCTURES BASED ON HEPARIN AND LANTHANOIDS

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
Study of synthetic and natural materials suitable for the creation of nanocarriers and their modification will provide a breakthrough in the treatment of many diseases.
M.I. Skobin   +2 more
doaj   +1 more source

A Study of the thermodynamic parameters (functions) of complexes formation of Sulfanilamid with metal ions and DL-Alanine by potentiometric method

open access: yesTikrit Journal of Pure Science, 2019
The current study deals with the preparation of disulfonalmide complexes composed of the sulfanilamid  drug , the salt of chromium(III) and the trisulfonalmide complexes composed of the  sulfonalmide drug , the metal salt and the amino acid (alanin), as
Luma Abaas Gaasm
doaj   +1 more source

Metal Binding Ability of Small Peptides Containing Cysteine Residues

open access: yesChemistryOpen, 2021
The Cd(II)‐, Pb(II)‐, Ni(II)‐ and Zn(II)‐complexes of small terminally protected peptides containing CXXX, XXXC, XCCX, CXnC (n=1–3) sequences have been studied with potentiometric, UV/Vis and CD spectroscopic techniques.
Márton Lukács   +3 more
doaj   +1 more source

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