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American Chemical Society, Inorganic Chemistry, 8(55), p. 3718-3720, 2016

DOI: 10.1021/acs.inorgchem.6b00107

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Tetra-Antimony(III)-Bridged 18-Tungsto-2-Arsenates(V), [(LSbIII)4(A-α-AsVW9O34)2]10– (L = Ph, OH): Turning Bioactivity On and Off by Ligand Substitution

Journal article published in 2016 by Peng Yang, Zhengguo Lin, Bassem S. Bassil, Gabriela Alfaro-Espinoza, Matthias S. Ullrich, Ming-Xing Li, Cristian Silvestru ORCID, Ulrich Kortz
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Two tetra-antimony(III)-bridged, sandwich-type 18-tungsto-2-arsenates(V), [(LSb(III))4(A-α-As(V)W9O34)2](10-) (L = Ph (1), OH (2)), were prepared and fully characterized in the solid state and in solution. Both polyanions are stable in aqueous physiological medium for at least 24 h (at concentrations ≥2.5 × 10(-6) M). Despite the presence of an isostructural tetra-antimony(III) motif in 1 and 2, distinctly different antibacterial activity was observed for both polyanions. The minimum inhibitory concentrations (MIC) of 1 (7.8-62.5 μg/mL) is lower than for any other organoantimony(III)-containing polyoxometalate reported to date.