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Issue 25, 2017
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Synthesis and characterization of polyoxometalate-based silver(I) phenylethynide compounds with antibacterial and antifungal activities

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Abstract

Six new silver-phenylethynide compounds, namely, [(AgC[triple bond, length as m-dash]CPh)4(AgCF3SO3)(DMSO)2] (1), [(AgC[triple bond, length as m-dash]CPh)(Ag3PW12O40)(DMSO)8] (2), [(AgC[triple bond, length as m-dash]CPh)(Ag3PMo12O40)(DMSO)8] (3), [(AgC[triple bond, length as m-dash]CPh)(Ag4SiW12O40)(DMSO)10] (4), [(AgC[triple bond, length as m-dash]CPh)8(Ag4SiW12O40)(DMSO)10] (5), and [(AgC[triple bond, length as m-dash]CPh)16(Ag3PW12O40)(DMSO)8(H2O)2] (6), have been synthesized and structurally characterized by X-ray crystallography. These compounds exhibit a coordinated silver column structure with OTf/POM anions serving as counter-anions (1, 6), an infinite chain structure based on the coordinated Ag4 aggregates and POM anions (2, 3) and a discrete molecular structure containing coordinated silver aggregates and POM anions (4, 5), respectively. The pure phases of 1–5 are obtained and identified. The antibacterial/antifungal activities of 1–5 are screened by the disk diffusion method against the bacteria strains Bacillus pumilus, Bacillus subtilis, Staphylococcus aureus and Escherichia coli and the fungi strains Aspergillus niger and Canidia albicans, and the MIC/MBC values are also measured. The cytotoxicity and biological toxicity test results showed that these compounds have low toxicity in both cells and animals.

Graphical abstract: Synthesis and characterization of polyoxometalate-based silver(i) phenylethynide compounds with antibacterial and antifungal activities

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Publication details

The article was received on 23 Jan 2017, accepted on 22 May 2017 and first published on 13 Jun 2017


Article type: Paper
DOI: 10.1039/C7CE00180K
Citation: CrystEngComm, 2017,19, 3445-3454
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    Synthesis and characterization of polyoxometalate-based silver(I) phenylethynide compounds with antibacterial and antifungal activities

    T. Hu, Y. Li, X. Kuang and C. Lu, CrystEngComm, 2017, 19, 3445
    DOI: 10.1039/C7CE00180K

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