Journal
JOURNAL OF ORGANOMETALLIC CHEMISTRY
Volume 749, Issue -, Pages 394-399Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2013.10.035
Keywords
Silver(I) complexes; Pyridine; Benzimidazole; X-ray diffraction; Antimicrobial activity
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Funding
- Medical University of Lodz [503/3-016-02/503-01]
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Three new silver(I) complexes of 4-(hydroxymethyl)pyridine (4-CH(2)OHpy), 2,6-di(hydroxymethyl)pyridine (2,6-di(CH2OH)py) and 2-(hydroxymethyl)benzimidazole (2-CH(2)OHbim) were synthesized. These complexes, with the general formula [Ag(L)(2)]NO3, were characterized by IR, NMR (H-1 and C-13) spectroscopy and elemental analysis. ESI-MS spectrometry was used in some cases. The crystal structure of [Ag(4-CH(2)OHpy)(2)]NO3 was determined by single crystal X-ray diffraction analysis. The complex demonstrates the slightly bent N1-Ag1-N2 coordination geometry (167.22(4)degrees) and consists of one nitrate anion and one silver ion coordinated by two 4-(hydroxymethyl) pyridine (4-CH(2)OHpy) ligands via N atoms. The series of three silver(I) complexes and the corresponding free ligands was tested for their antibacterial and antifungal activities, screened in vitro against Staphylococcus aureus ATCC 6538, Staphylococcus epidermidis ATCC 12228 and Candida albicans ATCC 10231. All the silver(I) complexes demonstrated considerable activity, especially against C. albicans (with MIC values 10-20 mg l(-1)). (C) 2013 Elsevier B. V. All rights reserved.
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