Thermal, spectroscopic and in vitro antimicrobial analysis of 2, 2′-(2-((carboxymethyl)(2-(2-hydroxyethoxy)-2-oxoethyl)amino)ethylazanediyl)diacetatocobalt(II)/manganese(II) hydrate
| Autor: | Soven Dhawa, G. Jeya Jothi, A. Jeya Rajendran, A. Hannah Hepsibah |
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| Rok vydání: | 2018 |
| Předmět: |
010405 organic chemistry
Chemistry Metal ions in aqueous solution Molar conductivity 010402 general chemistry Condensed Matter Physics 01 natural sciences Magnetic susceptibility 0104 chemical sciences law.invention Metal law visual_art Octahedral molecular geometry visual_art.visual_art_medium Proton NMR Physical and Theoretical Chemistry Hydrate Electron paramagnetic resonance Nuclear chemistry |
| Zdroj: | Journal of Thermal Analysis and Calorimetry. 134:1965-1973 |
| ISSN: | 1588-2926 1388-6150 |
| Popis: | Co(II), and Mn(II) complexes using 2,2′-(2-((carboxymethyl)(2-(2-hydroxyethoxy)-2-oxoethyl)amino)ethylazanediyl)diacetato (SCHOEA), derivative of disodium salt of EDTA were synthesized by three stages and characterized by spectroscopic (UV–Visible, FTIR, EPR, 1H NMR) techniques, magnetic susceptibility measurements and thermal studies (TA). Electronic and magnetic susceptibility measurements indicated low-spin octahedral complexes. The FTIR spectra supported the coordination mode of the ligand as hexadentate with the metal ions. Molar conductivity supported the non-electrolytic nature of the complexes. The EPR spectra confirmed the distorted octahedral geometry of the complexes based on the computation of Hamiltonian parameters and the degree of covalency. In vitro antimicrobial activities of the ligand and metal complexes against three bacterial (Enterobacteraerogenes, Micrococcus luteus, Shigellaflexineria) and two fungal species (Candida albicans, Aspergillusflavus) were performed by disc diffusion method which revealed that the complexes are more potent bactericides and fungicides than the ligand. |
| Databáze: | OpenAIRE |
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