Journals / Turkish Journal of Chemistry / 2015 / Cilt: 39 - Sayı: 3

Synthesis, characterization, biological studies, and molecular modeling of mixed ligand bivalent metal complexes of Schiff bases based on $N$-aminopyrimidine-2-one/2-thione

Pages
497–509
Publication Date
2015-08-13
DOI
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⚡ TL;DR(Too Long; Didn't Read)

In addition, the ground state geometries of the complexes were optimized using a semi-empirical method at PM6 level, which is a suitable and effective basis set for organometallic and large structures to obtain information about their 3D geometries and electronic structures.

📌 3 Key Takeaways

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Objective & Hypothesis:New mixed Schiff bases, Cu(II), Co(II), Ni(II), and Mn(II) complexes, were synthesized derived from 5-chloro-2-hydroxyacethophenone and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one/thione.
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Key Findings & Data:The compound named Co(L$_{1}$L) had good antifungal activity against Candida species, but no profound antibacterial effect against bacterial strains.
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Conclusion & Impact:In addition, the ground state geometries of the complexes were optimized using a semi-empirical method at PM6 level, which is a suitable and effective basis set for organometallic and large structures to obtain information about their 3D geometries and electronic structures.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Mixed ligand · Schiff bases · metal complexes

Abstract

New mixed Schiff bases, Cu(II), Co(II), Ni(II), and Mn(II) complexes, were synthesized derived from 5-chloro-2-hydroxyacethophenone and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one/thione. These complexes were characterized by elemental analysis, magnetic measurements, molar conductivity, IR, electronic, NMR, and mass spectral studies. All the complexes showed nonelectrolytic behavior. Moreover, the newly synthesized mixed ligand complexes were evaluated for their in vitro antimicrobial efficiency against bacteria and yeast. The compound named Co(L$_{1}$L) had good antifungal activity against Candida species, but no profound antibacterial effect against bacterial strains. In addition, the ground state geometries of the complexes were optimized using a semi-empirical method at PM6 level, which is a suitable and effective basis set for organometallic and large structures to obtain information about their 3D geometries and electronic structures.

Özet

New mixed Schiff bases, Cu(II), Co(II), Ni(II), and Mn(II) complexes, were synthesized derived from 5-chloro-2-hydroxyacethophenone and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one/thione. These complexes were characterized by elemental analysis, magnetic measurements, molar conductivity, IR, electronic, NMR, and mass spectral studies. All the complexes showed nonelectrolytic behavior. Moreover, the newly synthesized mixed ligand complexes were evaluated for their in vitro antimicrobial efficiency against bacteria and yeast. The compound named Co(L$_{1}$L) had good antifungal activity against Candida species, but no profound antibacterial effect against bacterial strains. In addition, the ground state geometries of the complexes were optimized using a semi-empirical method at PM6 level, which is a suitable and effective basis set for organometallic and large structures to obtain information about their 3D geometries and electronic structures.

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Cite This Article

SOĞUKÖMEROĞULLARI, H. G., TOK, T. T., YILMAZ, F., BERBER, İ., SÖNMEZ, M. (2015). Synthesis, characterization, biological studies, and molecular modeling of mixed ligand bivalent metal complexes of Schiff bases based on $N$-aminopyrimidine-2-one/2-thione. Turkish Journal of Chemistry, Cilt: 39 - Sayı: 3, 497–509. https://ajindex.com/articles/184971

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References (1)

  1. Molecular modeling In an attempt to gain a better insight into the molecular structure of the ligands and their complexes, geometry optimization was carried out using density functional theory at B3LYP/6-31G* level for the ligands and the semiempirical method at PM6 with no symmetry constrains for the complexes as implemented in Gaussian 09.34 4. Conclusion Multiple drug resistance or multiresistant microorganisms are a significant public health problem in the medical environment all over the world and therefore there is an urgent need to find new drugs. In conclusion, we hope that the [CoL1L].4H2O chemical compound can be effective against fungi.