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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 AlFn ]- (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(C<sub>2</sub> F<sub>5</sub> )<sub>4</sub> ]<sup>-</sup> were obtained from AlCl<sub>3</sub> and LiC<sub>2</sub> F<sub>5</sub> . They were isolated with different counter-cations and characterized by NMR and vibrational spectroscopy and mass spectrometry. Degradation of the [Al(C<sub>2</sub> F<sub>5</sub> )<sub>4</sub> ]<sup>-</sup> ion was found to proceed via 1,2-fluorine shifts and stepwise loss of CF(CF<sub>3</sub> ) under formation o  ...[more]

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