Titre : |
Synthèse, caractérisation et étude des propriétés magnétiques et de luminescence de quelques complexes de coordination. |
Type de document : |
texte imprimé |
Auteurs : |
Fouzia Lehchili ép Boudah, Auteur ; Fatima Setifi, Directeur de thèse ; Adel Beghidja, Directeur de thèse |
Mention d'édition : |
16-juin-21 |
Editeur : |
جامعة الإخوة منتوري قسنطينة |
Année de publication : |
2021 |
Importance : |
197 f. |
Format : |
30 cm. |
Note générale : |
1 copies imprimées disponibles
|
Langues : |
Français (fre) |
Catégories : |
Français - Anglais Chimie
|
Tags : |
Chimie: Chimie Inorganique Ligands polynitrile Ligands carboxylate et azide Métaux de transition diffraction des RX sur monocristal ATG/ATD Surfaces d’Hirshfeld Propriétés magnétique et luminescente Polynitrile ligands Carboxylate and azide ligands Transition metals, X-ray diffraction on single crystal Hirshfeld surfaces Magnetic and luminescent properties مخالب البولينثریل مخالب الكربوکسیل وأزيد المعادن الانتقالية انعكاس الأشعة السينية على بلورة مفردة أسطح هيرشفيلد الخصائص المغناطيسية و الضوئية |
Index. décimale : |
540 Chimie et sciences connexes |
Résumé : |
This thesis focuses on the synthesis by soft voice and hydrothermal voice; the structural characterization by x-ray diffraction on powder and monocrystal and by different spectroscopic methods, as well as by thermal analyzes and the study of photoluminescent and magnetic properties of new coordination complexes of metals of transition. During this work, we have obtained : Two new isostructural mononuclear coordination complexes of Cd(II) and Zn(II) with general formulas [Cd (H2O) 2 (2,20-dpa) 2] [tcnopr] 2 [Zn (H2O) 2 (2,20-dpa) 2] [tcnopr] 2 Three new polynuclear coordination complexes of Cd(II) and Zn(II) ; two of them are isostructural with general formulas : [Cd (H2O) 2 (4,4’-bpy) (tcnopr) 2] [Zn (H2O) 2 (4,4’-bpy) (tcnopr) 2] [Cd (H2O) 2 (4,4’-bpy) (tcnoet) 2]
Fluorescence analysis showed that all the complexes show moderate to weak blue, cyan, and green light emission only the complex [Cd (H2O) 2 (4,4'-bpy) (tcnoet) 2] (I) exhibits strong cyan light emission.These light emissions are attributed to the charge transfer interaction π-π* A two-dimensional coordination polymer of Cu (II) of the formula [(CuN3 (H2O)) 2 (adp)] n; the structure shows a Cu (II) chain with three different symmetrical bridges, namely the azide anion, water and carboxylate. The study of the magnetic properties on the copper polymer revealed that it exhibits moderate intra-chain ferromagnetic interactions with the coupling constant: Jchain = +38.4 cm − 1
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Note de contenu : |
Annexes. |
Diplôme : |
Doctorat en sciences |
En ligne : |
../theses/chimie/LEH7763.pdf |
Format de la ressource électronique : |
pdf |
Permalink : |
index.php?lvl=notice_display&id=11596 |
Synthèse, caractérisation et étude des propriétés magnétiques et de luminescence de quelques complexes de coordination. [texte imprimé] / Fouzia Lehchili ép Boudah, Auteur ; Fatima Setifi, Directeur de thèse ; Adel Beghidja, Directeur de thèse . - 16-juin-21 . - جامعة الإخوة منتوري قسنطينة, 2021 . - 197 f. ; 30 cm. 1 copies imprimées disponibles
Langues : Français ( fre)
Catégories : |
Français - Anglais Chimie
|
Tags : |
Chimie: Chimie Inorganique Ligands polynitrile Ligands carboxylate et azide Métaux de transition diffraction des RX sur monocristal ATG/ATD Surfaces d’Hirshfeld Propriétés magnétique et luminescente Polynitrile ligands Carboxylate and azide ligands Transition metals, X-ray diffraction on single crystal Hirshfeld surfaces Magnetic and luminescent properties مخالب البولينثریل مخالب الكربوکسیل وأزيد المعادن الانتقالية انعكاس الأشعة السينية على بلورة مفردة أسطح هيرشفيلد الخصائص المغناطيسية و الضوئية |
Index. décimale : |
540 Chimie et sciences connexes |
Résumé : |
This thesis focuses on the synthesis by soft voice and hydrothermal voice; the structural characterization by x-ray diffraction on powder and monocrystal and by different spectroscopic methods, as well as by thermal analyzes and the study of photoluminescent and magnetic properties of new coordination complexes of metals of transition. During this work, we have obtained : Two new isostructural mononuclear coordination complexes of Cd(II) and Zn(II) with general formulas [Cd (H2O) 2 (2,20-dpa) 2] [tcnopr] 2 [Zn (H2O) 2 (2,20-dpa) 2] [tcnopr] 2 Three new polynuclear coordination complexes of Cd(II) and Zn(II) ; two of them are isostructural with general formulas : [Cd (H2O) 2 (4,4’-bpy) (tcnopr) 2] [Zn (H2O) 2 (4,4’-bpy) (tcnopr) 2] [Cd (H2O) 2 (4,4’-bpy) (tcnoet) 2]
Fluorescence analysis showed that all the complexes show moderate to weak blue, cyan, and green light emission only the complex [Cd (H2O) 2 (4,4'-bpy) (tcnoet) 2] (I) exhibits strong cyan light emission.These light emissions are attributed to the charge transfer interaction π-π* A two-dimensional coordination polymer of Cu (II) of the formula [(CuN3 (H2O)) 2 (adp)] n; the structure shows a Cu (II) chain with three different symmetrical bridges, namely the azide anion, water and carboxylate. The study of the magnetic properties on the copper polymer revealed that it exhibits moderate intra-chain ferromagnetic interactions with the coupling constant: Jchain = +38.4 cm − 1
|
Note de contenu : |
Annexes. |
Diplôme : |
Doctorat en sciences |
En ligne : |
../theses/chimie/LEH7763.pdf |
Format de la ressource électronique : |
pdf |
Permalink : |
index.php?lvl=notice_display&id=11596 |
|