| People | Locations | Statistics |
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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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| Rignanese, Gian-Marco |
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Rompel, Annette
University of Vienna
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023Synthesis, Characterization, and Antibacterial Activity of Ni-Substituted Krebs-type Sandwich-Tungstobismuthates Functionalized with Amino Acidscitations
- 2022Synthesis and characterization of the 'Japanese rice-ball'-shaped molybdenum blue Na4[Mo2O2(OH)4(C6H4NO2)2]2[Mo120Ce6O366H12(OH)2(H2O)76]~200H2Ocitations
- 2021Defect {((WO7)-O-VI)W-4(VI)} and Full {((WO7)-O-VI)W-5(VI)} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstatescitations
- 2020Toward Artificial Mussel-Glue Proteins: Differentiating Sequence Modules for Adhesion and Switchable Cohesion
- 2020Toward Artificial Mussel-Glue Proteins: Differentiating Sequence Modules for Adhesion and Switchable Cohesion
- 2020Cation-Directed Synthetic Strategy Using 4f Tungstoantimonates as Nonlacunary Precursors for the Generation of 3d-4f Clusterscitations
- 2019Synthesis, crystal structure and characterization of two new Cr(III)-substituted polyoxotungstates: [Cr((OCH2)3CCH2OH)2W6O18]3- and [H3Cr2W10O38(H2O)2]7-citations
- 2018Iron(II) and copper(II) paratungstates B: a single-crystal X-ray diffraction studycitations
- 2018The antibacterial activity of polyoxometalates: structures, antibiotic effects and future perspectivescitations
- 2015Tris-Functionalized Hybrid Anderson Polyoxometalates: Synthesis, Characterization, Hydrolytic Stability and Inversion of Protein Surface Chargecitations
Places of action
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article
Defect {((WO7)-O-VI)W-4(VI)} and Full {((WO7)-O-VI)W-5(VI)} Pentagonal Units as Synthons for the Generation of Nanosized Main Group V Heteropolyoxotungstates
Abstract
<p>We report on the synthesis and characterization of three new nanosized main group V heteropolyoxotungstates KxNay[H-2((XW9O33)-O-VI)((W5O12)-O-VI)((X2W29O103)-O-VI)]center dot nH(2)O{X3W43} (x = 11, y = 16, and n = 115.5 for X = Sb-III; x = 20, y = 7, and n = 68 for X = Bi-III) and K-8 Na-15[H-16(Co-II(H2O)(2))(0.9)(Co-II(H2O)(3))(2)((W3.1O14)-O-VI)((SbW9O33)-W-III-O-VI) ((Sb2W30O106)-W-III-O-VI)(H2O)]center dot 53H(2)O {Co3Sb3W42}. On the basis of the key parameters for the one-pot synthesis strategy of {Bi3W43}, a rational step-by-step approach was developed using the known Krebs- type polyoxotungstat e ( POT) K-12[(Sb2W22O74)-W-V-O-VI(OH)(2)]center dot 27H(2)O {Sb2W22} as a nonlacunary precursor leading to the synthesis and characterization of {Sb3W43} and {Co3Sb3W42}. Solid-state characterization of the three new representatives {Bi3W43}, {Sb3W43}, and {Co3Sb3W42} by single-crystal and powder X-ray diffraction (XRD), IR spectroscopy, thermogravimetric analysis (TGA), energy-dispersive X-ray analysis (EDX), X-ray photoelectron spectroscopy (XPS), and elemental analysis, along with characterization in solution by UV/vis spectroscopy shows that {Bi3W43}, {Sb3W43}, and {Co3Sb3W42} represent the first main group V heteropolyoxotungstates encapsulating a defect {((WO7)-O-VI)W-4(VI)} ({X3W43}, X = BiIII and SbIII) or full {((WO7)-O-VI)W-5(VI)} ({Co3Sb3W42}) pentagonal unit. With 43 tungsten metal centers, {X3W43} (X = Bi-III and Sb-III) are the largest unsubstituted tungstoantimonate- and bismuthate clusters reported to date. By using time-dependent UV/vis spectroscopy, the isostructural representatives {Sb3W43} and {Bi3W43} were subjected to a comprehensive study on their catalytic properties as homogeneous electron-transfer catalysts for the reduction of K-3[Fe-III(CN)(6)] as a model substrate revealing up to 5.8 times higher substrate conversions in the first 240 min (35% for {Sb3W43}, 29% for {Bi3W43}) as compared to the uncatalyzed reaction (</p>