Výsledky vyhledávání - "Elie, Younang"

Akademický článek

Quantum Chemical Investigation on the Antioxidant Activity of Neutral and Anionic Forms of Juglone: Metal Chelation and Its Effect on Radical Scavenging Activity

Autor: Aymard Didier Fouegue Tamafo, Julius Numbonui Ghogomu, Nyiang Kennet Nkungli, Désiré Bikélé Mama, Elie Younang

Publikováno v: Journal of Chemistry, Vol 2017 (2017)

The chelation ability of divalent Mg, Ca, Fe, Co, Ni, Cu, Zn, and monovalent Cu ions by neutral and anionic forms of juglone has been investigated at DFT/B3LYP/6-31+G(d,p) level of theory in gas and aqueous phases. It is noteworthy that only the 1 :

Externí odkaz: https://doaj.org/article/6d20ebcd72124ceab86c076fa11c03ff

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Akademický článek

A DFT Study of Structural and Bonding Properties of Complexes Obtained from First-Row Transition Metal Chelation by 3-Alkyl-4-phenylacetylamino-4,5-dihydro-1H-1,2,4-triazol-5-one and Its Derivatives

Autor: Hubert Jean Nono, Désiré Bikélé Mama, Julius Numbonui Ghogomu, Elie Younang

Publikováno v: Bioinorganic Chemistry and Applications, Vol 2017 (2017)

Density functional calculations were used to explore the complexation of 3-alkyl-4-phenylacetylamino-4,5-dihydro-1h-1,2,4-triazol-5-one (ADPHT) derivatives by first-row transition metal cations. Neutral ADPHT ligand and mono deprotonated ligands have

Externí odkaz: https://doaj.org/article/6ca88ec7c5b44ebb80982e450ebf879e

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Akademický článek

Structural and Antioxidant Properties of Compounds Obtained from Fe2+ Chelation by Juglone and Two of Its Derivatives: DFT, QTAIM, and NBO Studies

Autor: Aymard Didier Tamafo Fouegue, Julius Numbonui Ghogomu, Désiré Bikélé Mama, Nyiang Kennet Nkungli, Elie Younang

Publikováno v: Bioinorganic Chemistry and Applications, Vol 2016 (2016)

The chelating ability of juglone and two of its derivatives towards Fe2+ ion and the antioxidant activity (AOA) of the resulting chelates and complexes (in the presence of H2O and CH3OH as ligands) in gas phase is reported via bond dissociation entha

Externí odkaz: https://doaj.org/article/081d9dfdea68406db58960a4e41bd340

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Structural, Spectral (IR and UV/Visible) and Thermodynamic Properties of Some 3d Transition Metal(II) Chloride Complexes of Glyoxime and Its Derivatives: A DFT and TD-DFT Study

Autor: Désiré Bikele Mama, Elie Younang, Shridhar R. Gadre, Julius Numbonui Ghogomu, Nyiang Kennet Nkungli, Ludovid Ngouo Nogheu

Publikováno v: Computational Chemistry. :119-136

Metal complexes bearing vic-dioxime ligands have been extensively used as analytical and biochemical reagents, and are well-known antimicrobial agents. Herein is reported a DFT study on the molecular structures, thermodynamic properties, chemical rea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::301fb452da967faa5aca5d3f37e2e6c2
https://doi.org/10.4236/cc.2016.44011

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Quantum Chemical Investigation on the Antioxidant Activity of Neutral and Anionic Forms of Juglone: Metal Chelation and Its Effect on Radical Scavenging Activity

Autor: Nyiang Kennet Nkungli, Désiré Bikele Mama, Aymard Didier Fouegue Tamafo, Julius Numbonui Ghogomu, Elie Younang

Publikováno v: Journal of Chemistry, Vol 2017 (2017)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d9a10a355e36bd8f46b28407eb95fdd
https://doaj.org/article/6d20ebcd72124ceab86c076fa11c03ff

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Thermodynamics-antioxidant activity relationships of some 4-benzylidenamino-4, 5-dihydro-1h-1,2,4-triazol-5-one derivatives: Theoretical evaluation

Autor: Luc Mbaze Meva’a, Ibrahim Mbouombouo Ndassa, Samuel Nsikabaka, Elie Younang, Daniel Lissouck, Joseph Zobo Mfomo, Désiré Bikele Mama

Density functional methods were used to predict the antioxidative efficiency of thirteen 4-benzylidenamino-4, 5-dihydro-1H-1,2,4-triazol-5-one derivatives in the gas phase and in the solution phase (water and benzene). Optimized geometries of molecul

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94c19ec2d9b97bffa614008c893a46b5

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Akademický článek

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A DFT Study of Structural and Bonding Properties of Complexes Obtained from First-Row Transition Metal Chelation by 3-Alkyl-4-phenylacetylamino-4,5-dihydro-1H-1,2,4-triazol-5-one and Its Derivatives

Autor: Désiré Bikele Mama, Elie Younang, Hubert Jean Nono, Julius Numbonui Ghogomu

Publikováno v: Bioinorganic Chemistry and Applications
Bioinorganic Chemistry and Applications, Vol 2017 (2017)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a339aea2dd8c9436afec5701a3956c95
https://pubmed.ncbi.nlm.nih.gov/28757814

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Ab initio calculations of all-transoctatetraene and eight isoelectronic conjugated chains: Semiempirical heats of formation and stabilization energies

Autor: Jean-Marie André, Joseph Delhalle, Elie Younang

Publikováno v: International Journal of Quantum Chemistry. 41:257-271

In the framework of our study of the changes of the electric polarizability upon substituting heteroatomic linkages in conjugated hydrocarbon backbones, we have been led to examine the relative stability of eight compounds isoelectronic to the all-tr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8797f15e471f6bca7cfec5d993ce6f1d
https://doi.org/10.1002/qua.560410203

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