Synthesis and Characterization of New Complexes Fe(II), Co(II) and Ni(II) Ions with Azo Ligand Derived from 4-Aminoantipyrene

AL-Azawi, Khalida F. AL-Azawi; Rasheed, Rashed Taleb; Jassim, Liblab S.

doi:10.22401/jnus.19.4.07

Cited by 4 publications

(3 citation statements)

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“…Molar conductance (Ʌm) measurements of the metal complexes were performed using ethanol as solvent at the concentration of 10 -3 M in room temperature. In this work, all prepared chelate complexes exhibited the range values of conductivity between (0.75-18.9) s.mol -1 .cm 2 that non-electrolyte and non-conductive types ,While the molar conductance of Au(III) complex with mixed ligand is (80) s.mol -1 .cm 2 indicating the electrolytic nature (1:2) electrolyte of this complexes furthermore the chloride ions are located outside the coordination sphere [35][36][37]. It is possible to conclude structures of the complexes.…”

Section: Measurement Of Conductivitymentioning

confidence: 99%

Synthesis and Characterization Some Complexes of Mixed Ligand and Study Its Effects as Antioxidant and Anticancer

Al- haddad,

Layla Ali Mohammed

2023

J. K. Chem. Sci.

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A series of mixed ligand complexes of Co(II), Ni(II), Cu(II), Zn (II),Cd(II), Fe (III ) andAu(III) were prepared and characterized. A new azo ligand derived from 4-methylimidazole with sulfadiazine and Schiff base derived from 4-(dimethylamino)-2-hydroxobenzaldehyde and 4-amino-3-hydroxy benzene sulfonamide. Ligands structures and their transitional metal mix-ligand complexes were characterized using various analytical techniques, including molar conductance, elemental analysis (C.H.N), electronic spectral, magnetic measurements, 1HNMR, IR spectral studies and mass spectra. The data shows that these complexes have composition of [ML1L2H2O] where M = Co(II), Ni(II), Cu(II), Zn(II) ,Cd(II) and Hg(II). [ML1L2Cl] where M=Fe(III). [ML1L2]Cl2 where M=Au(III). The magnetic susceptibility and electronic spectral data of the complexes indicate that the octahedral geometry of all complexes, except the complex of Au(III) indicates a square plane geometry. The IR results demonstrate that the co-ordination sites are imidazole nitrogen atom and the farthest azo nitrogen atom of L1 as natural bidentate with nitrogen the azomethine and oxygen atoms of Schiff base L4. Azo ligand and Schiff base behave as tridentate manner. All the compounds showed DPPH radical scavenging activity. In general, the results indicated that the complexes have potential and promising anti-oxidant activities.

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Section: Measurement Of Conductivitymentioning

confidence: 99%

Synthesis and Characterization Some Complexes of Mixed Ligand and Study Its Effects as Antioxidant and Anticancer

Al- haddad,

Layla Ali Mohammed

2023

J. K. Chem. Sci.

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“…Over the years, mixed-ligand complexes have been attraction in worldwide due to their several biological, enzymatic and analytical applications [23][24][25][26][27]. Azo -derivative Imidazole ligands have attracted the attention of many researches working in the field of coordination chemistry [28][29][30][31][32] This type of ligands that contain the azo imine group (-N=N-C=N-), that give feature high stability to metallic complexes [33][34][35][36][37][38] due to the back bonding.…”

Section: Introductionmentioning

confidence: 99%

Study of Microscopic Properties and Antioxidant Effect of Azo Ligand

Layla Ali Mohammed

2023

tjjpt

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In coordination chemistry, azo ligands are organic chemicals capable of selectively absorbing and reflecting light at wavelengths within the visible range of the electromagnetic spectrum. A pigment is a colored substance that has an affinity for the colored substance. The dye needs a liquid medium often to be able to transfer to the colored material, and it may need a color anchor to improve the color fastness in the dyed fibers. Color results from the pigment, or pigment, as a result of their absorption of certain wavelengths of light. Pigments , unlike dyes in general, dissolve in water and have no affinity for dyed materials. Azo ligands have weak electron bonding in the conjugated system so that incident light can stimulate these electrons and give them the energy needed to jump from one energy level to another, which means absorbing some wavelengths of incident light. What is important is that a mixture of the remaining wavelengths is reflected, giving color.

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“…AA contains a free amino group in its structural formula, which makes it an important raw material and pharmaceutical intermediate for the synthesis of analgesic, anti-inflammatory, and antibacterial drugs . AA and its derivatives contain three N atoms and ketone carbonyl groups, which are excellent coordination reagents for metal ions exhibiting optical, electrical, magnetic, and biological properties . They can form complexes with various metal ions such as La 3+ , Pr 3+ , Nd 3+ , and Sm 3+ .…”

Section: Introductionmentioning

confidence: 99%

Optimization of Nitrosation Reaction for Synthesis of 4-Aminoantipyrine by Response Surface Methodology and Its Reaction Mechanism

Zhang

Zhou

Yuan

et al. 2022

Org. Process Res. Dev.

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A small-scale process of nitrosation reaction for the preparation of 4-aminoantipyrine (AA) is optimized. Response surface methodology combined with Box–Behnken design is used to build the model and optimize parameters. AT-SO4/sodium nitrite molar ratio, antipyrine (AT)/sulfuric acid molar ratio, reaction time, and reaction temperature are selected as independent variables, and the purity and yield of AA are the response values. The optimized reaction conditions are as follows: n(AT-SO4)/n(NaNO2) = 0.84, n(AT)/n(H2SO4) = 1.72, the reaction temperature is 17 °C, and the reaction time is 2 min. The AA yield and purity reach 90.60 and 75.19%, respectively. In addition, IR and liquid chromatography–mass spectrometry analyses are used to study the reaction mechanism. Secondary nitrosation reaction products are discovered to be formed, and an unprecedented reaction mechanism is proposed.

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Synthesis and Characterization of New Complexes Fe(II), Co(II) and Ni(II) Ions with Azo Ligand Derived from 4-Aminoantipyrene

Cited by 4 publications

References 0 publications

Synthesis and Characterization Some Complexes of Mixed Ligand and Study Its Effects as Antioxidant and Anticancer

Synthesis and Characterization Some Complexes of Mixed Ligand and Study Its Effects as Antioxidant and Anticancer

Study of Microscopic Properties and Antioxidant Effect of Azo Ligand

Optimization of Nitrosation Reaction for Synthesis of 4-Aminoantipyrine by Response Surface Methodology and Its Reaction Mechanism

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