Synthesis, Properties and Application of Tetrakis(pentafluoroethyl)gallate, [Ga(C2F5)4].

Niemann M, Neumann B, Stammler H-G, Hoge B (2019)
Angewandte Chemie (International ed. in English).

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Abstract / Bemerkung
Weakly coordinating anions (WCA) are important for academic reasons as well as for technical applications. Tetrakis(pentafluoroethyl)gallate, [Ga(C2F5)4]-, a new WCA, is accessible by treatment of [GaCl3(dmap)] (dmap = 4-dimethylaminopyridine) with LiC2F5. The anion [Ga(C2F5)4]- proved to be reluctant towards deterioration by aqueous hydrochloric acid or lithium hydroxide. Various salts of [Ga(C2F5)4]- were synthesized with cations such as [PPh4]+, [CPh3]+, [(O2H5)2(OH2)2]2+ and [Li(dec)2]+ (dec = diethyl carbonate). Thermolysis of [(O2H5)2(OH2)2][Ga(C2F5)4]2 gives rise to a dihydrate of tris(pentafluoroethyl)gallane, [Ga(C2F5)3(OH2)2]. All products were characterized by NMR and IR spectroscopy, mass spectrometry, X-ray diffraction and elemental analysis. Furthermore an outlook for the application of [Li(dec)2][Ga(C2F5)4] as a conducting salt in lithium-ion batteries is presented. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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Angewandte Chemie (International ed. in English)
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Niemann M, Neumann B, Stammler H-G, Hoge B. Synthesis, Properties and Application of Tetrakis(pentafluoroethyl)gallate, [Ga(C2F5)4]. Angewandte Chemie (International ed. in English). 2019.
Niemann, M., Neumann, B., Stammler, H. - G., & Hoge, B. (2019). Synthesis, Properties and Application of Tetrakis(pentafluoroethyl)gallate, [Ga(C2F5)4]. Angewandte Chemie (International ed. in English). doi:10.1002/anie.201904197
Niemann, M., Neumann, B., Stammler, H. - G., and Hoge, B. (2019). Synthesis, Properties and Application of Tetrakis(pentafluoroethyl)gallate, [Ga(C2F5)4]. Angewandte Chemie (International ed. in English).
Niemann, M., et al., 2019. Synthesis, Properties and Application of Tetrakis(pentafluoroethyl)gallate, [Ga(C2F5)4]. Angewandte Chemie (International ed. in English).
M. Niemann, et al., “Synthesis, Properties and Application of Tetrakis(pentafluoroethyl)gallate, [Ga(C2F5)4].”, Angewandte Chemie (International ed. in English), 2019.
Niemann, M., Neumann, B., Stammler, H.-G., Hoge, B.: Synthesis, Properties and Application of Tetrakis(pentafluoroethyl)gallate, [Ga(C2F5)4]. Angewandte Chemie (International ed. in English). (2019).
Niemann, Mark, Neumann, Beate, Stammler, Hans-Georg, and Hoge, Berthold. “Synthesis, Properties and Application of Tetrakis(pentafluoroethyl)gallate, [Ga(C2F5)4].”. Angewandte Chemie (International ed. in English) (2019).

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