Gutmann, Torsten ; Alkhagani, Safaa ; Rothermel, Niels ; Limbach, Hans-Heinrich ; Breitzke, Hergen ; Buntkowsky, Gerd (2017)
³¹P-Solid-State NMR Characterization and Catalytic Hydrogenation Tests of Novel heterogenized Iridium-Catalysts.
In: Zeitschrift für Physikalische Chemie, 231 (3)
doi: 10.1515/zpch-2016-0837
Article, Bibliographie
This is the latest version of this item.
Abstract
The synthesis of novel robust and stable iridium-based immobilized catalysts on silica-polymer hybrid materials (Si-PB-Ir) is described. These catalysts are characterized by a combination of ¹D ³¹P CP-MAS and 2D ³¹P-¹H HETCOR and J-resolved multinuclear solid state NMR experiments. Different binding situations such as singly and multiply coordinated phosphines are identified. Density functional theory (DFT) calculations are performed to corroborate the interpretation of the experimental NMR data, in order to propose a structural model of the heterogenized catalysts. Finally, the catalytic activity of the Si-PB-Ir catalysts is investigated for the hydrogenation of styrene employing para-enriched hydrogen gas.
| Item Type: | Article |
|---|---|
| Erschienen: | 2017 |
| Creators: | Gutmann, Torsten ; Alkhagani, Safaa ; Rothermel, Niels ; Limbach, Hans-Heinrich ; Breitzke, Hergen ; Buntkowsky, Gerd |
| Type of entry: | Bibliographie |
| Title: | ³¹P-Solid-State NMR Characterization and Catalytic Hydrogenation Tests of Novel heterogenized Iridium-Catalysts |
| Language: | English |
| Date: | 2017 |
| Publisher: | De Gruyter |
| Journal or Publication Title: | Zeitschrift für Physikalische Chemie |
| Volume of the journal: | 231 |
| Issue Number: | 3 |
| DOI: | 10.1515/zpch-2016-0837 |
| Corresponding Links: | |
| Abstract: | The synthesis of novel robust and stable iridium-based immobilized catalysts on silica-polymer hybrid materials (Si-PB-Ir) is described. These catalysts are characterized by a combination of ¹D ³¹P CP-MAS and 2D ³¹P-¹H HETCOR and J-resolved multinuclear solid state NMR experiments. Different binding situations such as singly and multiply coordinated phosphines are identified. Density functional theory (DFT) calculations are performed to corroborate the interpretation of the experimental NMR data, in order to propose a structural model of the heterogenized catalysts. Finally, the catalytic activity of the Si-PB-Ir catalysts is investigated for the hydrogenation of styrene employing para-enriched hydrogen gas. |
| Additional Information: | Keywords: DFT; heterogeneous catalysis; hydrogenation; iridium; PHIP; solid-state-NMR |
| Classification DDC: | 500 Science and mathematics > 540 Chemistry |
| Divisions: | 07 Department of Chemistry 07 Department of Chemistry > Eduard Zintl-Institut 07 Department of Chemistry > Eduard Zintl-Institut > Physical Chemistry |
| Date Deposited: | 02 Aug 2024 12:37 |
| Last Modified: | 02 Aug 2024 12:37 |
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| Suche nach Titel in: | TUfind oder in Google |
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³¹P-Solid-State NMR Characterization and Catalytic Hydrogenation Tests of Novel heterogenized Iridium-Catalysts. (deposited 01 Oct 2021 11:36)
- ³¹P-Solid-State NMR Characterization and Catalytic Hydrogenation Tests of Novel heterogenized Iridium-Catalysts. (deposited 02 Aug 2024 12:37) [Currently Displayed]
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