In chemistry, a fluoroanion or fluorometallate anion is a polyatomic anion that contains one or more fluorine atoms. The ions and salts form from them are also known as complex fluorides. They can occur in salts, or in solution, but seldom as pure acids. Fluoroanions often contain elements in higher oxidation states. They mostly can be considered as fluorometallates, which are a subclass of halometallates. However some fluoroanions contain non-metals.
Anions that contain both fluorine and oxygen can be called "oxofluoroanions" (or rarely "fluorooxoanions").
List of fluoroanions
The following is a list of fluoroanions, in atomic number order: trifluoroberyllate tetrafluoroberyllate tetrafluoroborate magnesium tetrafluoride trifluoroaluminate tetrafluoroaluminate pentafluoroaluminate hexafluoroaluminate (fluoroaluminate) heptafluoroaluminate hexafluorosilicate hexafluorophosphate Sulfur trifluoride anion pentafluorosulfate(IV) aka pentafluorosulfite or Sulfur pentafluoride ion or sulfur pentafluoride anion [SF5]− gives off SF4 vapour. tetrafluorochlorate trifluoroscandate(II)? tetrafluoroscandate? hexafluoroscandate pentafluorotitanite [TiF5]2− hexafluorotitanite [TiF6]3− hexafluorotitanate [TiF6]2− tetrafluorovanadate(III) pentafluorovanadate(III) hexafluorovanadate(III) hexafluorovanadate(IV) hexafluorovanadate(V) unstable in water hexafluorochromite [CrF6]3− hexafluorochromate [CrF6]2− trifluoromanganate hexafluoromanganate(III) hexafluoromanganate(IV) heptafluoromanganate IV Tetrafluoroferrate 1− and 2− hexafluoroferrate 4− and 3− tetrafluorocobaltate II Hexafluorocobaltate III and IV Heptafluorocobaltate IV Tetrafluoronickelate Hexafluoronickelate II, III, and IV hexafluorocuprate tetrafluorozincate Hexafluorogallate hexafluorogermanate hexafluoroarsenate tetrafluorobromate hexafluorobromate tetrafluoroyttrate pentafluorozirconate hexafluorozirconate heptafluorozirconate octafluorozirconate hexafluoroniobate heptafluoroniobate octafluoromolybdate tetrafluoropalladate hexafluororhodate hexafluororuthenate(IV) hexafluororuthenate(V) trifluoroargentate(I) hexafluoroindate hexafluorostannate fluoroantimonate hexafluoroiodate 1− octafluoroxenate tetrafluorolanthanate pentafluorocerate IV Hexafluorocerate IVTetraethylammonium Hexafluoro Uranate(IV), Hafnate(IV), and Cerate(IV) Salts: Preparation and Solid-state Structure Heptafluorocerate IV octafluorocerate IV pentafluorohafnate hexafluorohafnate heptafluorotantalate octafluorotantalate heptafluorotungstate octafluorotungstate octafluororhenate hexafluoroplatinate tetrafluoroaurate hexafluoroaurate trifluorothallate(I) tetrafluorothallate(I) tetrafluorothallate(III) hexafluorothallate(III) tetrafluorobismuthate hexafluorobismuthate hexafluorothorate heptafluoroprotactinate(V) octafluoroprotactinate(V) hexafluorouranate(IV) hexafluorouranate(V)Nitrosylium Hexafluorouranate (NOUF6) and Its Derivatives heptafluorouranate(VI) octafluorouranate(IV) octafluorouranate(V) octafluorouranate(VI) hexafluoroneptunate(IV)ChemInform Abstract: Reactions of Hexafluorides of Uranium, Neptunium, and Plutonium with Nitrogen Oxides and Oxyfluorides. Synthesis and Characterization of (NO)[NpF6 and (NO)[PuF6]] hexafluoroneptunate(V) hexafluoroneptunate(VII)Understanding Structure and Bonding in Early Actinide 6d 0 5f 0 MX 6 q (M = Th−Np; X = H, F) Complexes in Comparison with Their Transition Metal 5d 0 Analogues heptafluoroneptunate(V) heptafluoroneptunate(VI) octafluoroneptunate(V) hexafluoroplutonate(IV) hexafluoroplutonate(V)
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