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Modification on Synthesis of Mixed Ligand Chelates by Using Di- and Trivalent Transition Metal Ions with Schiff Base as Primary Ligand

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Green and Sustainable Chemistry 2014年第3期4卷 103-110页

作者： Abdussalam Ali Maihub Faten Suliman Alassbaly Marei Mailoud El-Ajaily abdunnaser mohamed etorki Chemistry Department Faculty of Science Benghazi University Benghazi Libya Chemistry Department Faculty of Science Tripoli University Tripoli Libya

New mixed ligand chelates synthesized from di-and trivalent metal ions (Cr, Co, Ni, and Cu ions) and Schiff base (L1) resulted from the condensation of 4-dimethylaminobenzaldehyde with 2-aminophenol as primary ligand, whereas 2-nitroaniline (L2) represents the secondary ligand in a molar ratio of M:L1:L2 [1:1:1]. The synthesized Schiff base and chelates have been characterized by using several tools, such as, elemental analysis, molar conductivity, magnetic moment measurements, infrared and electronic spectra. The mass spectra of the ligands and Ni(II) chelate were used to justify the process of modification, as well as, the electron paramagnetic resonance spectrum which was carried out for Cu(II) chelate all in order to elucidate the chemical and geometrical structure of the chelates. On the basis of the obtained data, the geometry of the products was proposed for all the chelates.

关键词： Schiff Base 2-Nitroaniline Chelates 4-Dimethylaminobenzaaldehyde 2-Aminophenol Physiochemical Techniques

Schiff Base Derived from p-Nitrobenzaldehyde and1,8-Naphthalenediamine Precursor in Metal Ions Uptake

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Journal of Chemistry and Chemical Engineering 2014年第3期8卷 226-231页

作者： Abdussalam Ali Maihub abdunnaser mohamed etorki Salah Mosbah Ben-Sabert Marei Meiloud El-ajaily Motraga mohamed Abou-Krisha Chemistry Department Faculty of Science Tripoli University Tripoli Libya Pharm. Chemistry Department Faculty of Pharmacy Tripoli University Tripoli Libya Chemistry Department Faculty of Science Benghazi University Benghazi Libya Chemistry Department Faculty of Science South Valley University Gena Egypt

The characteristic coordination behavior of Schiff bases synthesized from carbonyl been investigated and studied in different field, such as their chemistry and biological activity and primary amine compounds have Few numbers of Schiff bases were implicated in analytical aspect such as metal uptake techniques. The Schiff base and may its chelates derived from p-nitrobenzaldehyde and 1,8-naphthalenediamine were synthesized and characterized by different analytical tools. The chemical structures have been elucidated by physiochemical methods. The site of the coordination with metal ion gave this Schiff base the advantage to be used in uptake techniques, either as batch or column. The uptake studies preformed and analyzed with respect to justification of the site of coordination.

关键词： Schiff bases chelates physiochemical p-nitrobenzaldehyde 1 8-naphthalenediamine coordination.

The Role of Aromatic Schiff Bases in the Dyes Techniques

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International Journal of Organic Chemistry 2014年第1期4卷 7-15页

作者： Karema Masoude Abuamer Abdussalam Ali Maihub Marei Miloud El-Ajaily abdunnaser mohamed etorki Mortaja mohamed Abou-Krisha Majda Albashir Almagani Chemistry Department Faculty of Science Benghazi University Benghazi Libya Chemistry Department Faculty of Science South Valley University Gena Egypt Chemistry Department Faculty of Science Tripoli University Tripoli Libya

Anil compounds are Schiff bases derived from aniline moiety containing phenyl or substituted phenyl group, which sometimes called Azo dyes. These Schiff bases can be directly prepared from aromatic amine with aromatic carbonyl groups, which are stable and can be manipulated under different and suitable conditions. The phenomena of coordination of Schiff bases with metal ions give the Schiff bases the good advantages to be introduced in the dyes synthesis. The classification of dyes is based on the chemical structure or on the basis of the chromophoric system. The metal complex dyes are combinations of dyestuff and metal ions, in which the coordination complex can be applied or used to be improvement factors in dye techniques. The investigation and the characterization of the resulted dyes were performed by using different physical techniques. The produced dyes were applied to different fibres, such as sheep wool and goat hair with two Schiff bases synthesised from salicylaldehyde either with 2-aminophenol or 2-aminobenzyl alcohol. Also the investigation includes the effect of mordant type on the dyeing process.

关键词： Dyes 2-Aminophenol 2-Aminobenzyl Alcohol Salicylaldehyde Schiff Bases Complexation

Removal of Aniline Blue from Aqueous Solutions Using Ce1-xBixCrO3 (x = 0, 0.5, 1)

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Open Journal of Inorganic Non 2018年第1期8卷 1-10页

作者： Labib A. Awin Mahmoud A. El-Rais abdunnaser M. etorki Najat A. mohamed Wesal A. Makhlof Department of Chemistry Faculty of Science University of Tripoli Tripoli Libya Department of Chemistry School of Basic Sciences Libyan Academy Tripoli Libya

The removal of aniline blue dye from aqueous solutions using the A-site doped perovskite Ce1-xBixCrO3 (x = 0, 0.5, 1) was investigated. The perovskite oxides were synthesised using Sol-Gel method and characterised by conventional powder X-ray diffraction technique. The X-ray diffraction measurements suggested that doping with Bismuth Ion influences both the crystal structure and the particle size of the oxides, and consequently affects the adsorption properties. It was found that both CeCrO3 and Ce0.5Bi0.5CrO3 compounds are orthorhombic and have approximate particle size of 87 and 36 nm respectively, whereas BiCrO3 oxide has rhombohedral space group symmetry and the particle sizes are less than 49 nm. The batch mode study demonstrated that the removal capacities of Aniline Blue at 150 min and pH = 4.3 for Ce0.5Bi0.5CrO3, CeCrO3 and BiCrO3 are 779.67, 705.45 and 440.18 mg/g respectively. The results reflect the influence of the A site doping on the adsorption properties of the oxides. The removal of Aniline Blue was found to be negatively correlated with temperature and pH.

关键词： Removal Aniline Blue Perovskite Oxides