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Pentafluoroethylaluminates: A Combined Synthetic,Spectroscopic, and Structural Study |
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| Authors: | Lisa A Bischoff Jarno Riefer Raphael Wirthensohn Tobias Bischof Rüdiger Bertermann Dr Nikolai V Ignat'ev Prof Dr Maik Finze |
| Institution: | 1. Institut für nachhaltige Chemie & Katalyse mit Bor (ICB), Institut für Anorganische Chemie, Julius- Maximimilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany;2. Institut für nachhaltige Chemie & Katalyse mit Bor (ICB), Institut für Anorganische Chemie, Julius- Maximimilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
Consultant, Merck KGaA, 64293 Darmstadt, Germany |
| Abstract: | Salts of the tetrakis(pentafluoroethyl)aluminate anion Al(C2F5)4]− were obtained from AlCl3 and LiC2F5. They were isolated with different counter-cations and characterized by NMR and vibrational spectroscopy and mass spectrometry. Degradation of the Al(C2F5)4]− ion was found to proceed via 1,2-fluorine shifts and stepwise loss of CF(CF3) under formation of (C2F5)4−nAlFn]− (n=1–4) as assessed by NMR spectroscopy and mass spectrometry and supported by results of DFT calculations. In addition, the (C2F5)AlF3]− ion was structurally characterized. |
| Keywords: | aluminum fluorine perfluoroalkyl weakly coordinating anions |