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Physico-chemical and thermal characterisation of new Co(II) complexes with pyrazole derivatives |
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| Authors: | Ioana Dorina Vlaicu Rodica Olar Dana Marinescu Veronica Lazar Mihaela Badea |
| Affiliation: | 1. Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., Sector 5, 050663, Bucharest, Romania 2. Department of Microbiology, Faculty of Biology, University of Bucharest, 1-3 Aleea Portocalelor St., Sector 6, 060101, Bucharest, Romania |
| Abstract: | Four new complexes having general formula [CoL2(acr)2] (L: 1H-pyrazole (Hpz) (1); 3-methyl-1H-pyrazole (3-Me-Hpz) (2); 4-methyl-1H-pyrazole (4-Me-Hpz) (3); 3,5-dimethyl-1H-pyrazole (Hdmpz) (4); acr: acrylato ion) were synthesised and characterised. The infrared and UV–vis spectral data indicate that these pyrazole derivatives act as unidentate while acrylato ions act as bidentate chelate ligands generating Co(II) complexes with octahedral stereochemistry. TG experiments revealed the nature of complex species as anhydrous and confirmed those compositions. The biological assays revealed a good activity against Bacillus subtilis for all complexes. |
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