Homoleptic borates and aluminates containing the difluorophosphato ligand - [M(O2PF2)x](y-) - synthesis and characterization

Dalton Transactions : an International Journal of Inorganic Chemistry
Christoph SchulzIngo Krossing

Abstract

Weakly coordinating anions (WCAs) with the difluorophosphato ligand (O2PF2) were the target of this study. Initial experiments were conducted towards the preparation of homoleptic aluminates of the well-studied [Al(OR)4](-)-type. The preparation of the initial target structure Li[Al(O2PF2)4] failed due to the remaining Lewis acidic character of the central aluminum atom. Instead, the formation of Li3[Al(O2PF2)6] and Al(O2PF2)3 was observed with hexacoordinate aluminum atoms and verified by NMR, IR and X-ray crystallography. A possible mechanism towards these compounds was postulated in the solvent induced dismutation of the tetracoordinate Li[Al(O2PF2)4]. A singly charged WCA was realized by the exchange of the central aluminum atom for boron. The [B(O2PF2)4](-) anion was prepared starting from BH3·S(CH3)2 and boron tribromide leading to the protic room temperature Ionic Liquid (IL) [H(S(CH3)2)][B(O2PF2)4] and the neat liquid Brønsted acid H[B(O2PF2)4], respectively, representing a significantly improved synthesis with regard to the first experiments of Dove et al. The basicity of the [B(O2PF2)4](-) anion and its WCA quality were investigated on the basis of the IR-spectroscopic NH-scale and the salt [H(N(Oct)3)][B(O2PF2)4] tha...Continue Reading

References

Nov 15, 2002·Journal of the American Chemical Society·Daniel StaskoEvgenii S Stoyanov
Apr 17, 2003·Journal of the American Chemical Society·Sergei V IvanovSteven H Strauss
Nov 25, 2003·Inorganic Chemistry·Fabienne Bessac, Gernot Frenking
Apr 15, 2004·Angewandte Chemie·Ingo Krossing, Ines Raabe
Sep 17, 2004·Chemistry : a European Journal·Ingo Krossing, Ines Raabe
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Jun 29, 2006·Journal of the American Chemical Society·Evgenii S StoyanovChristopher A Reed
Feb 9, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Ines RaabeIngo Krossing
Sep 4, 2008·Angewandte Chemie·Lutz O MüllerIngo Krossing
Apr 4, 2009·Angewandte Chemie·Amy AvelarChristopher A Reed
Jul 8, 2009·Inorganic Chemistry·Kazuhiko Matsumoto, Rika Hagiwara
Aug 21, 2009·Chemistry : a European Journal·Andreas ReisingerIngo Krossing
Jun 15, 2010·Angewandte Chemie·Christoph BolliJonas Warneke
Aug 19, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Janis DerendorfChristoph Schulz
Dec 4, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Anna J LehnerIngo Krossing
May 5, 2012·Angewandte Chemie·Julia SchaeferIngo Krossing
May 29, 2012·Angewandte Chemie·Tobias KöchnerIngo Krossing
Apr 5, 2013·Angewandte Chemie·Alexander HigelinIngo Krossing
Jul 31, 2013·Chemistry : a European Journal·Julia SchaeferIngo Krossing

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Citations

Jul 23, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Przemysław J MalinowskiWojciech Grochala
Jul 23, 2020·Acta Crystallographica. Section E, Crystallographic Communications·Matthias Weil, Markus Fürst
Jan 18, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Ji-Hong JiangJin-Xiao Mi
May 20, 2020·Chemistry : a European Journal·Christoph HellingStephan Schulz

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