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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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Verbanac, Donatella
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article
Synthesis, Characterization, and Antibacterial Activity of Ni-Substituted Krebs-type Sandwich-Tungstobismuthates Functionalized with Amino Acids
Abstract
<p>Four new Ni-substituted Krebs-type sandwich-tungstobismuthates, K<sub>4</sub>Ni<sub>2</sub>[{Ni(β-ala)(H<sub>2</sub>O)<sub>2</sub>}<sub>2</sub>{Ni(H<sub>2</sub>O)}<sub>2</sub>{Ni(H<sub>2</sub>O)(η<sup>2</sup>-β-ala)}<sub>2</sub>(B-β-BiW<sub>9</sub>O<sub>33</sub>)<sub>2</sub>]·49H<sub>2</sub>O {(β-ala)<sub>4</sub>(Ni<sub>3</sub>)<sub>2</sub>(BiW<sub>9</sub>)<sub>2</sub>}, K<sub>3.5</sub>Na<sub>6.5</sub>[{Ni(η<sup>3</sup>-L-asp)}<sub>2</sub>(WO<sub>2</sub>)<sub>2</sub>(B-β-BiW<sub>9</sub>O<sub>33</sub>)<sub>2</sub>]·36H<sub>2</sub>O·L-asp {(L-asp)<sub>2</sub>(NiW)<sub>2</sub>(BiW<sub>9</sub>)<sub>2</sub>}, K<sub>4</sub>Na<sub>6</sub>[{Ni(gly)(H<sub>2</sub>O)<sub>2</sub>}<sub>2</sub>(WO<sub>2</sub>)<sub>2</sub>(B-β-BiW<sub>9</sub>O<sub>33</sub>)<sub>2</sub>]·86H<sub>2</sub>O {(gly)<sub>2</sub>(NiW)<sub>2</sub>(BiW<sub>9</sub>)<sub>2</sub>}, and K<sub>2</sub>Na<sub>8</sub>[{Ni(η<sup>2</sup>-serinol) (H<sub>2</sub>O)}<sub>2</sub>{Ni(H<sub>2</sub>O)<sub>2</sub>}<sub>2</sub>(B-β-BiW<sub>9</sub>O<sub>33</sub>)<sub>2</sub>]·42H<sub>2</sub>O {(serinol)<sub>2</sub>Ni<sub>4</sub>(BiW<sub>9</sub>)<sub>2</sub>} have been synthesized by one-pot solution methods. All compounds have been characterized in the solid state by single-crystal X-ray diffraction (SXRD), powder X-ray diffraction (PXRD), elemental and thermogravimetric analyses, and infrared spectroscopy (IR), as well as by UV-vis spectroscopy in solution. The antibacterial activity of all compounds was studied against four bacterial strains by the determination of the minimum inhibitory concentration (MIC). The results showed that only {(β-ala)<sub>4</sub>(Ni<sub>3</sub>)<sub>2</sub>(BiW<sub>9</sub>)<sub>2</sub>} demonstrates antibacterial activity (MIC is in the range from 8 to 256 μg/mL) compared to three other Ni-Krebs sandwiches.</p>