Development of a new method for the recovery of precious metals from anthropogenic wastes - tetrafluoridobromates(III) as powerful solid fluoro-oxidizers.

• Applicant: Professor Dr. Florian Kraus
• Subject Area: Solid State and Surface Chemistry, Material Synthesis
• Term: from 2014 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 259165388

• Final Report Year: 2020

Final Report Abstract

Zusammenfassend konnten wir die Chemie von BrF3 und der Tetrafluoridobromate mit den Platinmetallen, aber auch die Chemie von Cu, Ag und Au, signifikant erweitern. Wir haben dabei einen Blick auf „ungewöhnlichere“ Lösungsmittel wie NH3 geworfen. Ein einfacher Zugang zu O2PtF6, die Existenz der Ionen [BrF2]+, [Br2F5]+ und [Br3F8]+ , sowie [Br2F7]− und [Br3F10]− stellen für die Fluorchemie eine Bereicherung dar.

Publications

• Li2PtF6 revisited, Acta Crystallogr., Sect. E: Struct. Rep. Online, 2014, E70, i43
  F. Kraus
  (See online at https://doi.org/10.1107/S1600536814015566)
• A facile synthesis of pure O2PtF6, Z. Anorg. Allgem. Chem. 2015, 641, 2404-2407
  S. S. Rudel, F. Kraus
  (See online at https://doi.org/10.1002/zaac.201500616)
• Na2PtF6, its Crystal Structure, Characterization, and Ammonolysis to [Na(NH3)3]2[PtF6], Z. Anorg. Allg.Chem. 2015, 641, 298-303
  S. S. Rudel, T. G. Müller, F. Kraus
  (See online at https://doi.org/10.1002/zaac.201400477)
• On Copper(I)-Fluorides, the Cuprophilic Interaction, the Preparation of Copper Nitride at Room Temperature and its Formation Mechanism at Elevated Temperatures, Chem. Eur. J. 2015, 21, 3290-3303
  P. Woidy, A. J. Karttunen, M. Widenmeyer, R. Niewa, F. Kraus
  (See online at https://doi.org/10.1002/chem.201406136)
• Br2F7− and Br3F10−: Peculiar anions showing µ2- and µ3-bridging F-atoms, Chem. Commun. 2016, 52, 12040-12043
  S. I. Ivlev, A. J. Karttunen, R. V. Ostvald, F. Kraus
  (See online at https://doi.org/10.1039/C6CC06761A)
• Crystal structure of [Ag(NH3)3]2[Ag(NH3)2]2[SnF6]F2, a compound showing argentophilic interactions, Acta Cryst. E 2016, 72, 1860-1863
  Kraus, M. Fichtl, S. Baer
  (See online at https://doi.org/10.1107/S2056989016019010)
• Redetermination of the crystal structure of K[BrF4] from single-crystal X-Ray diffraction data, IUCrData 2018, 3, x180646
  S. I. Ivlev, F. Kraus
  (See online at https://doi.org/10.1107/S2414314618006466)
• Synthesis and Characterization of Barium Hexafluoridoosmates, Crystals 2018, 8, 11
  S. I. Ivlev, A. J. Karttunen, M. R. Buchner, M. Conrad, R. V. Ostvald, F. Kraus
  (See online at https://doi.org/10.3390/cryst8010011)
• Synthesis and characterization of the pyridine – bromine trifluoride (1/1) complex [py∙BrF3], J. Fluorine Chem. 2018, 215, 17-24
  S. I. Ivlev, M. R. Buchner, A. J. Karttunen, F. Kraus
  (See online at https://doi.org/10.1016/j.jfluchem.2018.08.009)
• The Interhalogen Cations [Br2F5]+ and [Br3F8]+, Angew. Chem. 2018, 44, 14850-14855 ; Angew. Chem. Int. Ed. 2018, 57, 14640-14644
  S. I. Ivlev, A. J. Karttunen, M. R. Buchner, M. Conrad, F. Kraus
  (See online at https://doi.org/10.1002/anie.201803708)
• F-bridged Anions of Bromine and Gold: Predictions of Unexpected Behavior, Z. Anorg. Allg. Chem. 2019, 645, 284-291
  J. Linnera, S. I. Ivlev, F. Kraus, A. J. Karttunen
  (See online at https://doi.org/10.1002/zaac.201800405)
• Reactions of KBrF4 with Platinum Metals, J. Fluorine Chem. 2019, 218, 11-20
  S. I. Ivlev, A. V. Malin, A. J. Karttunen, R. V. Ostvald, F. Kraus
  (See online at https://doi.org/10.1016/j.jfluchem.2018.11.010)
• Rubidium tetrafluoridobromate(III): redetermination of the crystal structure from single-crystal X-ray diffraction data, IUCr Data 2019, 4, x191595
  V. Malin, S. I. Ivlev, R. V. Ostvald, F. Kraus
  (See online at https://doi.org/10.1107/S2414314619015955)
• Redetermination of the crystal structure of cesium tetrafluoridobromate(III) from single crystal X-ray diffraction data, IUCrData 2020, 5, x200114
  V. Malin, S. I. Ivlev, R. V. Ostvald
  (See online at https://doi.org/10.1107/S2414314620001145)