Conducted a study of preparation, diagnosis and study of biological activity of Ligand 4(4-Benzophenol Azopyrogallol) The two-tooth containing the two groups of nitrogen with two similar rings, and the goal of the research is to prepare the ligand above, and after that to prepare the azo-ligand complexes above with the salts of the metal ions selected with a positive charge at fixed rates Sr (II), pb (II), Cd (II), and these compounds were diagnosed with FTIR, UV and XRD, and the fungal activity of ligand and its complexes were diagnosed for staph, E-coli and fungus species. Aspergullus, and some complexes have shown to have antifungal and bacterial efficacy.

New azo reagent was synthesized by reaction dizonium salt of Para aminobenzoic acid with Pyrogallol, also prepared three Chelate complexes of this reagent with the metal ions of Co(II), Ni(II), and Ag(I). This reagent was characterized by FTIR(Fourier Transform Infrared), UV. Visible spectrophotometer, FESEM and HNMR proton. The antibacterial activities of the compounds were studied and evaluated using gram positive and negative gram bacteria. The purity of the dye was checked by thin layer chromatography (TLC) using solvent system (Toluene-Methanol) (2:3).The melting point of the purified dye was measured in an open capillary tube. The results showed that some of these compounds have high levels of antibacterial activity.

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This research includes reaction and condensation between substituted 4-aminopyridine and 4-(N, N-dimethyl amino benzaldehyde) to produce Schiff base derivative (3), the compound (3) was selected to react with a different compound such as Thioglycolic acid, Phthalic anhydride, and maleic anhydride, to produced new ring of Thiazolidine derivatives and oxazepine derivatives structures (4,5,6,7,8,9,10,11,12), respectively. The final compound was characterized the structure by Fourier transform-infrared spectroscopy, H-Nuclear magnetic resonance (H-NMR) in addition to the Carbon, Hydrogen, Nitrogen (CHN) analyzer. Biological activity has been considered for the final structures and achievements of multi drugs.

Activated carbon (palm leaf): low-cost sorbents, successfully used for dye adsorption from wastewater preparation of palm leaf, obtained from the grower in Iraq and dry in sunlight and im-pregnated to 3% HNO3 and then dried for 24 hours at 90°C. The adsorption was proved via way of utilizing the (FTIR) and (FE-SEM) analysis, it was observed that there is no change in the beam before and after adsorption only shifts in intensity, evidence of physical adsorption, and FESEM appear image before adsorption contains many smaller granules that are not clustered together and spread on the surface, but after the adsorption we notice the swelling of these particles and they form irregular clusters, evidence of loading the dye inside these granules, which led to swelling. The kinetic model experimental result was carried out via two models fi rst and second order, utilized to describe the adsorption process. Second model kinetic by greater than R2= 0.9864. The study discusses the thermodynamic Factors having changes in enthalpy, entropy, and Gibbs free energy. Through the results, it was found that the adsorption process is an endothermic and spontaneous reaction.