Synthesis and Characterization of Tetrakis(pentafluoroethyl)aluminate.
Natalia TiessenBeate NeumannHans-Georg StammlerBerthold HogePublished in: Chemistry (Weinheim an der Bergstrasse, Germany) (2020)
While perfluorinated aryl, aryloxy and alkoxy aluminum species are well-established as weakly coordinating anions (WCAs), corresponding perfluoroalkyl aluminum derivatives are virtually unknown. Reaction of Si(C2 F5 )3 CH3 with Li[AlH4 ] afforded the tetrakis(pentafluoroethyl)aluminate, [Al(C2 F5 )4 ]- . Several salts of the [Al(C2 F5 )4 ]- ion were synthesized and characterized by NMR spectroscopic methods, mass spectrometry, X-ray diffraction studies and elemental analysis.