Tin(II) complexes of tetraaza macrocycles have been prepared by template process using malonic, succinic and adipic acids with 1,2-diaminoethane and 1,3-diaminopropane. The reaction proceed smoothly to completion. The complexes were characterized by elemental analyses, molecular weight determinations, infrared and 'H NMR spectral studies. The elemental analyses are consistent with the formulation of complexes as [Sn(MacroC n )Cl 2 ]. All the complexes are stable and monomeric as indicate by molecular weight determinations. The spectral studies confirm the proposed framework of the new macrocyclic complexes and indicate an octahedral environment around the central tin atom. The potential binding sites being the nitrogen atoms of the ligand. The biological activities of starting materials and their metal complexes have been studied by screening the compounds against Fusarium oxysporum and Aspergillus niger.
A novel family of tetraazamacrocyclic complexes of Sn(II) has been synthesized by template condensation using 1,9-diaminononane with different dicarboxylic acids (malonic, succinic, glutaric, and adipic). The complexes were characterized by elemental analysis, conductivity measurements, molecular weight determinations, infrared (IR), proton nuclear magnetic resonance ( 1 H NMR), carbon nuclear magnetic resonance ( 13 C NMR), and tin nuclear magnetic resonance ( 119 Sn NMR) spectral studies. The compounds were found to be monomeric in nature, having an octahedral geometry. The in vitro antibacterial activity of macrocyclic complexes against Escherichia coli and Staphylococcus aureus were tested to assess their inhibiting activities. The antifungal activity of starting materials and their metal complexes were studied by screening the compounds against Fusarium oxysporum and Aspergillus niger . The testicular sperm density, sperm morphology, sperm motility, density of cauda epididymis, spermatozoa, and fertility in mating trials and the biochemical parameters of the reproductive organs of the rats were examined and are discussed.
Petroleum hydrocarbon compounds are recognized to be neurotoxic and xenobiotic organic pollutants, because they are presently a large environmental issue as a result of the increased mining of petroleum compounds and similar products, both of which have important environmental consequences. Petroleum products include cancer - causing compounds which can have a range of impacts on ecology biotic and abiotic variables, and leakage is generally induced by mistakes in pumping, transportation, and refining. Physical and biological procedures are commonly cleaned to separate petroleum from polluted areas. Both methods are efficient but can be costly. Because it is not very costly and leads to complete mineralization, bioremediation is the best and most advanced method for treating these polluted sites. Another very significant and successful natural technique for eliminating petroleum hydrocarbon environmental contaminants is microbial decomposition. Hydrocarbon contaminants could be deteriorated by a variety of indigenous microbes in water and soil. A variety of limiting variables have been identified that impact petroleum hydrocarbon biodegradation. This study outlines the aerobic and anaerobic microbiological breakdown of organic compounds, as well as the different variables that influence the process. Microbial deterioration could be regarded a vital aspect in the cleaning approach for petroleum hydrocarbon recovery, it can be inferred.
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