Affiliation:
1. Department of Chemistry Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 D-12489 Berlin Germany
2. Institut für Chemie und Biochemie Freie Universität Berlin Fabeckstraße 34/36 D-14195 Berlin Germany
3. BAM Federal Institute for Materials Research and Testing Richard-Willstätter-Straße 11 D-12489 Berlin Germany
Abstract
AbstractAn anion‐doped aluminium chlorofluoride AlCl0.1F2.8(OTeF5)0.1 (ACF‐teflate) was synthesized. The material contains pentafluoroorthotellurate (teflate) groups, which mimic fluoride ions electronically, but are sterically more demanding. They are embedded into the amorphous structure. The latter was studied by PDF analysis, EXAFS data and MAS NMR spectroscopy. The mesoporous powder is a Lewis superacid, and ATR‐IR spectra of adsorbed CD3CN reveal a blue‐shift of the adsorption band by 73 cm−1, which is larger than the shift for SbF5. Remarkably, ACF‐teflate catalyzes dehydrofluorination reactions of monofluoroalkanes to yield olefins in C6D6. In these cases, no Friedel‐Crafts products were formed.
Funder
Deutsche Forschungsgemeinschaft
Diamond Light Source
Subject
Inorganic Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Catalysis
Cited by
2 articles.
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