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    BAZI s-TRİAZİN KÖPRÜLÜ KALİKSAREN KOMPLEKSLERİNİN SENTEZİ VE KARAKTERİZASYONU
    (2021-07-12) Aouled, Idriss Mahamoud
    Bu çalışmada siyanürik klorür 0 °C’da ayrı ayrı 2,4-dihidroksibenzaldehit, 3,5-dihidroksibenzilalkol ve metil-3,5-dihidroksibenzoat ile reaksiyona tabi tutularak 2,4-bis((4,6-dikloro-1,3,5-triazin-2-il)oksi)benzaldehit, (3,5-bis((4,6-dikloro-1,3,5-triazin -2-il)oksi)fenil)metanol ve metil-3,5-bis((4,6-dikloro-1,3,5-triazin-2-il)oksi)benzoat elde edildi. Daha sonra bu elde edilen bileşikler 28 °C’da sırasıyla tekrar 2,4-dihidrok-sibenzaldehit, 3,5-dihidroksibenzilalkol ve metil-3,5-dihidroksibenzoat ile reaksiyona tabi tutularak ID1, ID3 ve ID6 olarak kodladığımız ara s-triazin köprülü kaliksaren bileşikleri elde edildi. ID1 kodlu bileşiğin iki kez 1:2 mol oranında 4-aminobenzoik asit ile reaksiyonundan ID2 olarak kodladığımız ilk s-triazin köprülü kaliksaren ligandımız elde edilmiştir. ID3 kodlu ara ürünün 1:2 mol oranında 4-aminobenzoik asit ile reaksiyonundan ID4 kodlu ligand, 1:2 mol oranında 4-hidroksibenzoik asit ile reaksiyonundan ID5 kodlu ligand elde edilmiştir. ID6 kodlu ara ürünün 1:2 mol oranında 4-aminobenzoik asit ile reaksiyonundan ID7 kodlu ligand, 1:2 mol oranında 4-hidroksibenzoik asit ile reaksiyonundan ID8 kodlu ligand elde edilmiştir. Elde edilen bu ID2, ID4, ID5, ID7 ve ID9 kodlu ligandların her biri uygun mol oranında 1,4-diok-san ortamında [(MSalen/Saloph)2O] (M=Cr3+, Fe3+ ve Co3+) başlangıç kompleksleri ile reaksiyonundan (MSalen/Saloph) şapkalı s-triazin köprülü kaliksaren kompleks-leri elde edilmiştir. Elde edilen bu ligandlar 1H-NMR (DMSO-d6), FT-IR spektroskopisi ve elementel analiz yöntemleri ile karakterize edilmiştir. Kompleksler ise FT-IR, UV-Vis spektroskopisi, elementel analiz, manyetik süssebtibilite ve TGA-DTA teknikleri kullanılarak karakterize edilmiştir. Komplekslerdeki metal miktarları ise ICP-AES spektroskopisi ile belirlenmiştir.
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    Investigation of [MSalen/salophen] (M = Cr3+, Fe3+ or Co3+) capped dinuclear complexes of two novel tetraoxocalix[2](m-hydroxymethyl)arene[2]triazine compounds
    (Taylor & Francis Inc, 2021) Aouled, Idriss Mahamoud; Uysal, Saban
    In this work, (3,5-bis((4,6-dichloro-1,3,5-triazine-2-yl)oxy)phenyl)methanol was obtained by reacting cyanuric chloride with 3,5-dihydroxybenzyl alcohol at 0 degrees C. Then, s-triazine bridged calixarene codded as L1 was obtained by reacting the compounds with 3,5-dihydroxybenzyl alcohol. Targed ligands, which we code as L2 and L3, were obtained from the reaction of the L1 coded compound with 4-aminobenzoic acid or 4-hydroxybenzoic acid, respectively. [MSalen/Saloph] capped s-triazine bridged calixarene complexes were obtained from the reaction of the L2 or L3 codded ligand and the [(MSalen/Saloph)(2)O] (M = Cr3+, Fe3+, Co3+) starting complexes in 1,4-dioxane media. The ligands and complexes were characterized by using H-1-NMR, FT-IR spectroscopy, UV-Vis spectroscopies, magnetic susceptibility, TGA-DTA and elemental analysis techniques. Metal contents of the complexes were determined by using ICP-AES spectroscopy. Calixarenes can be used in many areas such as chiral phase transfer catalyst, recognition of enantiomers, stationary phase in chromatography, recovery of heavy and precious metals molecules or ions from environmental wastes.
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    Investigation of thermal and magnetic properties of [MSalen/Saloph] (M = Cr3+, Fe3+ or Co3+) capped dinuclear complexes of two novel tetraoxocalix[2]arene[2]triazine ligands
    (Elsevier, 2023) Aouled, Idriss Mahamoud; Uysal, Saban
    In this study, tetraoxocalix[2]arene[2]triazine compound as starting compound codded as C1 was synthesized by reacting of 2,4,6-trichloro-1,3,5-triazine with methyl-3,5-dihydroxybenzoate in two stages. sTriazine bridged calixarene ligands as target ligands, which we coded as C2 and C3, were obtained from the reaction of C1 coded compound with 4-aminobenzoic acid or 4-hydroxybenzoic acid at 1:2 mole ratio, respectively. [MSalen/Saloph] capped benzoic acid substitute tetraoksocalix[2] aren[2]triazine complexes were obtained from the reaction of C2 or C3 codded ligand with [(MSalen/Saloph) 2 O] (M = Cr 3 + , Fe 3 + and Co 3 + ) starting complexes in 1,4-dioxane media. The ligands obtained were characterized by using 1 HNMR , FT-IR spectroscopy and elemental analysis techniques. The complexes obtained were characterized by using FT-IR, UV-vis spectroscopies, elemental analysis, magnetic susceptibility, and TGA-DTA techniques. Metal contents of the complexes were determined by using ICP-OES spectroscopy. (c) 2023 Elsevier B.V. All rights reserved.
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    The synthesis and characterization of s-triazine bridged calixarene based a Schiff base: Investigation of its [MSalen/Salophen] (M = Cr3+, Fe3+ or Co3+) capped complexes
    (Elsevier, 2022) Aouled, Idriss Mahamoud; Uysal, Saban
    In this study, 2,4-bis((4,6-dichloro-1,3,5-triazin-2-yl)oxy)benzaldehyde, was obtained by reacting cyanuric chloride with 2,4-dihydroxybenzaldehyde at 0 degrees C. Then, s-triazine bridged calixarene codded as TABCA1 was obtained by reacting the compounds with 2,4-dihydroxybenzaldehide. This s-triazine bridged calixarene ligand, which we coded as TABCA2, was obtained from the reaction of TABCA1 coded compound with 4-aminobenzoic acid at a 1:2 mole ratio, twice. [MSalen/Saloph] capped s-triazine bridged calixaren complexes were obtained from the reaction of TABCA2 codded ligand and the [(MSalen/Saloph)(2)O] (M=Cr3+, Fe3+ and Co3+) starting complexes in 1,4-dioxane media. The ligand obtained were characterized by using H-1 NMR, FT-IR spectroscopy and elemental analysis techniques. The complexes obtained were characterized by using FT-IR, UV-Vis spectroscopies, elemental analysis, magnetic susceptibility, and TGA-DTA techniques. Metal contents of the complexes were determined by using ICP-AES spectroscopy. (C) 2021 Elsevier B.V. All rights reserved.