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Pentafluoroethylaluminates: A Combined Synthetic, Spectroscopic, and Structural Study.

ABSTRACT: Salts of the tetrakis(pentafluoroethyl)aluminate anion [Al(C₂ F₅ )₄ ]^- were obtained from AlCl₃ and LiC₂ F₅ . They were isolated with different counter-cations and characterized by NMR and vibrational spectroscopy and mass spectrometry. Degradation of the [Al(C₂ F₅ )₄ ]^- ion was found to proceed via 1,2-fluorine shifts and stepwise loss of CF(CF₃ ) under formation of [(C₂ F₅ )_4-n AlF_n ]^- (n=1-4) as assessed by NMR spectroscopy and mass spectrometry and supported by results of DFT calculations. In addition, the [(C₂ F₅ )AlF₃ ]^- ion was structurally characterized.

SUBMITTER: Bischoff LA

PROVIDER: S-EPMC7689865 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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Pentafluoroethylaluminates: A Combined Synthetic, Spectroscopic, and Structural Study.

Bischoff Lisa A LA Riefer Jarno J Wirthensohn Raphael R Bischof Tobias T Bertermann Rüdiger R Ignat'ev Nikolai V NV Finze Maik M

Chemistry (Weinheim an der Bergstrasse, Germany) 20200720 60

Salts of the tetrakis(pentafluoroethyl)aluminate anion [Al(C2 F5 )4 ]- were obtained from AlCl3 and LiC2 F5 . They were isolated with different counter-cations and characterized by NMR and vibrational spectroscopy and mass spectrometry. Degradation of the [Al(C2 F5 )4 ]- ion was found to proceed via 1,2-fluorine shifts and stepwise loss of CF(CF3 ) under formation o ...[more]

PMID: 32167200

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