Synthesis and biologic properties of macroacyclic Schiff-base ligand contaning piperazine and pyridine moieties and corresponding Zn(II) and Cd(II) complexes
محل انتشار: بیست و یکمین سمینار شیمی معدنی انجمن شیمی ایران
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 273
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شناسه ملی سند علمی:
IICC21_251
تاریخ نمایه سازی: 5 آذر 1398
چکیده مقاله:
In this paper, the new polyamine 2-((4-(2-((2-aminobenzyl)(pyridin-2-ylmethyl)amino)ethyl)piperazin-1-yl)methyl)aniline (A) was synthesized by the reaction of 2-aminoethylpiperazine with 2-formylpyridine and 2-nitrobenzylchloride. IR spectrum of polyamine exhibit a (NH2) vibration in 3213-3339 cm-1. The mass spectrum of polyamine A shows the peak at 431 m/z that confirm the synthesis of polyamine A. The Schiff base ligand potentially octadentate (L) was prepared from condensation of 2-formylpyridine with polyamine (A). IR spectrum of ligand exhibit a (C=N) vibration in 1617 cm-1. The mass spectrum of ligand (L) shows the peak at 609 m/z that confirm the synthesis ligand. From direct reaction of this ligand and Zn(II) and Cd(II) metal ions in methanolic solution four macroacyclic Schiff-base complexes were prepared. The IR spectra of the complexes show the band of (C=N) in the 1608 cm-1, which is shifted to lower frequency ongoing from the free ligands. The mass spectra of complexes show the peaks at 675 and 724 m/z that confirm the synthesis of complexes. The elemental analysis and 1H and 13C NMR confirm the synthesis of products. Furthermore the antioxidant properties of polyamine (A), ligand (L) and its corresponding complexes were investigated [1-2].
نویسندگان
Parya Jani
Faculty of Chemistry, Bu-Ali Sina University, Hamedan ۶۵۱۷۴, Iran
Hassan Keypour
Faculty of Chemistry, Bu-Ali Sina University, Hamedan ۶۵۱۷۴, Iran
Masoumeh Mahmoudabadi
Faculty of Chemistry, Bu-Ali Sina University, Hamedan ۶۵۱۷۴, Iran