| 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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Roller, Alexander
University of Vienna
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Fungal Carbon: A Cost-Effective Tunable Network Template for Creating Supercapacitorscitations
- 2023Latonduine-1-Amino-Hydantoin Hybrid, Triazole-Fused Latonduine Schiff Bases and Their Metal Complexes: Synthesis, X-ray and Electron Diffraction, Molecular Docking Studies and Antiproliferative Activitycitations
- 2023Solid-state 13C NMR, X-ray diffraction and structural study of methyl 4-O-methyl β-D-glucopyranosides with all eight possible methyl-substitution patternscitations
- 2023A Novel Molecular Assembly of a Cobalt-Sulfate Coordination Polymer and Melaminecitations
- 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
- 2020Naphthoquinones of natural origin: Aqueous chemistry and coordination to half-sandwich organometallic cationscitations
- 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
- 2018Complexes of pyridoxal thiosemicarbazones formed with vanadium(IV/V) and copper(II)citations
- 2018Iron(II) and copper(II) paratungstates B: a single-crystal X-ray diffraction studycitations
- 2017Introducing the 4-Phenyl-1,2,3-Triazole Moiety as a Versatile Scaffold for the Development of Cytotoxic Ruthenium(II) and Osmium(II) Arene Cyclometalatescitations
- 2017Comparative equilibrium and structural studies of new pentamethylcyclopentadienyl rhodium complexes bearing (O, N) donor bidentate ligandscitations
- 2016Synthesis, characterisation and cytotoxic activity of organoruthenium(II)-halido complexes with 1H-benzimidazole-2-carboxylic acidcitations
- 2015Tris-Functionalized Hybrid Anderson Polyoxometalates: Synthesis, Characterization, Hydrolytic Stability and Inversion of Protein Surface Chargecitations
- 2014Antitumor pentamethylcyclopentadienyl rhodium complexes of maltol and allomaltolcitations
- 2011Ruthenium- and Osmium-Arene Complexes of 2-Substituted Indolo[3,2-c]quinolines: Synthesis, Structure, Spectroscopic Properties, and Antiproliferative Activitycitations
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>