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Silver complexes of ligands derived from adamantylamines: Water-soluble silver-donating compounds with antibacterial properties.

ABSTRACT: Two new silver(I) complexes, namely [Ag(qyAm)2](CF3SO3) (1) and [Ag(qyTAm)2](CF3SO3) (2), (qyAm=2-(quinonyl)iminoadamantane, qyTAm=2-(quinonyl)iminotriazaadamantane) have been synthesized and characterized by elemental analyses, 1H NMR, IR, electronic absorption spectroscopy, and X-ray diffraction. The coordination geometry of the silver center in both complexes is distorted tetrahedral where their respective qyAm and qyTAm ligand bind in a bidentate fashion using the imine and quinoline nitrogen atoms. Complex 2 is soluble in water and exhibits strong antimicrobial actions on both Gram-negative (E. coli, and P. aeruginosa) and Gram-positive (S. aureus) bacteria. The minimal inhibitory concentration (MIC) values for complex 2 (4, 4, and 8 ?g for E. coli, P. aeruginosa, and S. aureus, respectively) are comparable to MIC values of silver nitrate and silver sulfadiazine.

SUBMITTER: Jimenez J

PROVIDER: S-EPMC5728992 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Silver complexes of ligands derived from adamantylamines: Water-soluble silver-donating compounds with antibacterial properties.

Jimenez Jorge J Chakraborty Indranil I Rojas-Andrade Mauricio M Mascharak Pradip K PK

Journal of inorganic biochemistry 20161210

Two new silver(I) complexes, namely [Ag(qyAm)2](CF3SO3) (1) and [Ag(qyTAm)2](CF3SO3) (2), (qyAm=2-(quinonyl)iminoadamantane, qyTAm=2-(quinonyl)iminotriazaadamantane) have been synthesized and characterized by elemental analyses, 1H NMR, IR, electronic absorption spectroscopy, and X-ray diffraction. The coordination geometry of the silver center in both complexes is distorted tetrahedral where their respective qyAm and q ...[more]

PMID: 27997857

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