Abstract
Cobalt-amino acids complexes in aqueous solution: [Co-(L H 1O)2]×H2O (1), (L1=lysine), [Co- (L2H2O)J×.H2O (2), (L 2=Ieucine) and [Co(L3H2O)]×2H 2O (3), (L3=methionine) were synthesized and characterized by means of elemental, thermal ana IR, UV-VIS, and EPR spectroscopic investigations, and biological measurements. The IR spectra show that amino acids act as bidentate ligands with coordination involving the carboxylic oxygen and the nitrogen atom of the amino group. The v(C=O), v(N-H), and 5(N- H) vibrations are shifted toward higher frequencies for complexes comparable with ligands. Visible electronic and powder EPR spectres at room temperature are typical for monomeric species with octahedric local symmetry around the metal ion. The biological testing of the synthesized complexes was done to see citotoxic activity that might show on cell cultures of Sacharomices cerevisiae and Candida albicans.
Original language | English (US) |
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Pages (from-to) | 939-943 |
Number of pages | 5 |
Journal | Revista de Chimie |
Volume | 60 |
Issue number | 9 |
State | Published - Sep 2009 |
Keywords
- Amino acids
- Biological testing
- Co(II) complexes
- FT-IR/UV-VIS/EPR spectroscopy
ASJC Scopus subject areas
- Engineering(all)
- Materials Chemistry
- Surfaces, Coatings and Films
- Chemistry(all)
- Medicine(all)
- Biochemistry, Genetics and Molecular Biology(all)
- Pharmacology, Toxicology and Pharmaceutics(all)
- Materials Science (miscellaneous)