Strong Lewis and Brønsted acidic sites in the borosulfate Mg3[H2O→B(SO4)3]2
Abstract: Borosulfates provide fascinating structures and properties that go beyond a pure analogy to silicates. Mg3[H2O→B(SO4)3]2 is the first borosulfate featuring a boron atom solely coordinated by three tetrahedra. Thus, the free Lewis acidic site forms a Lewis acid–base adduct with a water molecule. This is unprecedented for borosulfate chemistry and even for borates. Quantum chemical calculations on water exchange reactions with BF3 and B(C6F5)3 revealed a higher Lewis acidity for the borosulfate anion. Moreover, proton exchange reactions showed a higher Brønsted acidity than comparable silicates or phosphates. Additionally, Mg3[H2O→B(SO4)3]2 was characterised by X-ray diffraction, infrared spectroscopy, thermogravimetric analysis, and density functional theory (DFT) calculations
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Notes
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Angewandte Chemie. International edition. - 60, 19 (2021) , 10643-10646, ISSN: 1521-3773
- Event
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Veröffentlichung
- (where)
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Freiburg
- (who)
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Universität
- (when)
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2021
- Creator
- DOI
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10.1002/anie.202016920
- URN
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urn:nbn:de:bsz:25-freidok-2225425
- Rights
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Kein Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:27 AM CEST
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Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Netzsch, Philip
- Stroh, Regina
- Pielnhofer, Florian
- Krossing, Ingo
- Höppe, Henning A.
- Universität
Time of origin
- 2021
Other Objects (12)