The structure of H3O+TiF5−

Guanidinium Perfluoridotitanate(IV) Compounds: Structural Determination of an Oligomeric [Ti6F27]3– Anion, and an Example of a Mixed‐Anion Salt Containing Two Different Fluoridotitanate(IV) Anions

“…In the solid state these units can remain isolated, leading to trivial hexafluoridotitanate(IV) salts, or they can be linked by sharing fluorine ions, yielding larger oligomeric (0‐D geometry) or polymeric (1‐D, 2‐D and 3‐D) anions. So far, there are 18 structurally characterized fluoridotitanate(IV) anions: oligomeric [TiF 6 ] 2– , [Ti 2 F 10 ] 2– ,, [Ti 2 F 11 ] 3– , [Ti 4 F 18 ] 2– , [Ti 4 F 19 ] 3– , [Ti 4 F 20 ] 4– , [Ti 5 F 23 ] 3– , [Ti 8 F 36 ] 4– , [Ti 10 F 45 ] 5– , and polymeric ([TiF 5 ] – ) ∞ , ([Ti 2 F 9 ] – ) ∞ ,, , ([Ti 3 F 13 ] – ) ∞ , ([Ti 4 F 19 ] 3– ) ∞ , ([Ti 6 F 27 ] 3– ) ∞ , ([Ti 7 F 30 ] 2– ) ∞ , ([Ti 9 F 38 ] 2– ) ∞ , and two modifications of the ([Ti 8 F 33 ] – ) ∞ anion , . The geometries of the various anions were determined with X‐ray experiments on single crystals of pure inorganic and/or hybrid compounds.…”

Structural chemistry of fluoride and oxofluoride complexes of titanium(IV)

“…In contrast to (H 3 O)TiF 5 [72] and (NH 4 )TiF 5 [73], which both have an one-dimensional chain structure, the fluoridotitanates(IV) (H 3 O)Ti 2 F 9 , CsTi 2 F 9 , [68] and ( Hydrogen bonds and ionic strength combine the cations and the double chain anions into a threedimensional network.…”

Structures of oxonium pentafluorozirconate mono- and dihydrates

“…for the Ti compound, TiF~-.OH] (Cohen, Selig & Gut, 1982), we establish the ionic formulation and the presence of oxonium ions.…”