Тип публикации: статья из журнала
Год издания: 2021
Идентификатор DOI: 10.1002/slct.202102078
Ключевые слова: antibacterial screening, antibiotic, biogenic metals, dft calculations, vibrational spectroscopy
Аннотация: Mg(II) and Ca(II) complexes with cefazolin were synthesized and investigated using elemental and atomic-emission analysis, TGA, X-ray diffraction, FT-IR spectroscopy, 1H and 13CNMR, DFT calculations, and QTAIM analysis. The thermal behavior of these complexes was also studied. In the magnesium complex, two cefazolin ions are coordiПоказать полностьюnated to the metal ion through the oxygen atoms of the lactam and carboxylate groups as a bidentate ligand. However, cefazolin chelated to the calcium ion through both oxygen atoms of the carboxylate groups and the lactam groups′ oxygen atoms as tridentate ligand. Sodium cefazolin and metal complexes were also screened for antibacterial activity against Staphylococcus aureus and Escherichia coli. The calcium complex exhibited higher antibacterial effects than the magnesium complex (5.2–7.7 % higher against S. aureus– and 15.4–27.3 % against E. coli), which is related to weaker binding of Ca, compared to Mg, with the oxygen atom of lactam group and, as a result, more free releasing of the lactam group in the solving process. © 2021 Wiley-VCH GmbH
Журнал: ChemistrySelect
Выпуск журнала: Vol. 6, Is. 34
Номера страниц: 8974-8980
ISSN журнала: 23656549
Издатель: John Wiley and Sons Inc