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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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Đorđević, Tamara
TU Wien
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2023Tl(I) sequestration by pharmacosiderite supergroup arsenatescitations
- 2022Temperature-Induced Phase Transition in a Feldspar-Related Compound BaZn2As2O8∙H2Ocitations
- 2021Water in the Alluaudite Type-Compounds
- 2021An update on the mineral-like Sr-containing transition metal arsenatescitations
- 2020Synthesis, crystal structure and biological activity of copper(II) complex with 4-nitro-3-pyrazolecarboxylic ligandcitations
- 2017Hydrothermal and ionothermal synthesis of mineral-related arsenates in the system CdO-MO-As2O5 (M2+ = Mg, Co, Ni, Cu, Zn) and their crystal structurescitations
- 2016A single-crystal X-ray and Raman spectroscopic study of hydrothermally synthesized arsenates and vanadates with the descloizite and adelite structure typescitations
- 2015Three new alluaudite-like protonated arsenates: NaMg3(AsO4)(AsO3OH)2, NaZn3(AsO4)(AsO3OH)2 and Na(Na0.6Zn0.4)Zn2(H0.6AsO4)(AsO3OH)2citations
- 2014A new anion-deficient fluorite-related super structure of Bi28V8O62citations
- 2011Ba(ZnAsO4)2xH2O, a non-centrosymmetric framework structure related to feldspar
- 2011Two new zincophosphates, (H3NCH2CH2NH3)2[Zn(µ-PO4)2] and (NH4)[(H3N)Zn{(µ-PO4)Zn}3]: Crystal structures and relationships to similar open framework zinco- and aluminophospates
- 2011Crystal chemistry of elpidite from Khan Bogdo (Mongolia) and its K- and Rb-exchanged forms
- 2010A new polymorph of Ba(AsO3OH): Synthesis, crystal structure and vibrational spectra
- 2010Hydrogen bonding in coquimbite, nominally Fe2(SO4)3×9H2O, and the relationship between coquimbite and paracoquimbite
- 2009Investigations in the systems Sr-As-O-X (X = H, Cl): Preparation and crystal structure refinements of the anhydrous arsenates(V) Sr3(AsO4)2, Sr2As2O7, a- and ß-SrAs2O6, and of the apatite-type phases Sr5(AsO4)3OH and Sr5(AsO4)3Cl
- 2008Synthesis, crystal structure, infrared and Raman spectra of Sr4Cu3(AsO4)2(AsO3OH)4×3H2O and Ba2Cu4(AsO4)2(AsO3OH)3citations
- 2008Structural and spectroscopic study of Mg13.4(OH)6(HVO4)2(H0.2VO4)6
- 2004The first proof of protonated anion tetrahedra in the tsumcorite-type compoundscitations
Places of action
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article
Hydrothermal and ionothermal synthesis of mineral-related arsenates in the system CdO-MO-As2O5 (M2+ = Mg, Co, Ni, Cu, Zn) and their crystal structures
Abstract
<p>During systematic research on the mineral-related arsenates in the system CdO-MO-As<sub>2</sub>O<sub>5</sub>-H<sub>2</sub>O (M<sup>2+</sup> = Mg, Co, Ni, Cu, Zn), three new Cd-containing arsenates Cd<sub>4.65</sub>Ni<sub>0.35</sub> (AsO<sub>4</sub>)2(HAsO<sub>4</sub>)<sub>2</sub>4H<sub>2</sub>O (1), Cd<sub>0.75</sub>Co<sub>2.75</sub> (H<sub>0.5</sub>AsO<sub>4</sub>)2(HAsO<sub>4</sub>) (2) and Cd<sub>1.25</sub>Zn<sub>0.75</sub> (HAsO<sub>4</sub>)<sub>2</sub>2H<sub>2</sub>O (3) have been synthesized under hydrothermal conditions, while the Zn-arsenate Zn<sub>9</sub> (AsO<sub>4</sub>)<sub>6</sub>4H<sub>2</sub>O (4) and again 2 have been prepared under ionothermal conditions using the ionic liquid 1-ethyl-3-methylimidazolium bromide, (C6H11N2)Br, as the solvent. Their crystal structures were determined using single-crystal X-ray diffraction data and refined to the reasonably low R-values: 1 - R<sub>1</sub> = 0.030; 2 - R<sub>1</sub> = 0.047; 3 - R<sub>1</sub> = 0.029; 6 - R<sub>1</sub> = 0.029. The compounds 1, 2 and 3 are structural analogues of three different arsenate mineral phases. Compound 4 was for the first time synthesized using ionic liquid as the solvent and the hydrogen atoms were found and refined. Infrared and Raman spectra were measured and evaluated in order to obtain further information on the anion groups and especially on the short hydrogen bonds. The OH stretching frequency is in good agreement with the observed O:::O distances. The different approaches in the synthesis of mineral-related arsenates, the temperature treatment as well as the role of added water in ionothermal synthesis are also discussed.</p>