Titanium(III) fluoride

Titanium(III) fluoride is the inorganic compound with the formula TiF3. A violet, paramagnetic solid, it is one of two titanium fluorides, the other being titanium tetrafluoride.[1] It adopts a defect perovskite-like structure such that each Ti center has octahedral coordination geometry, and each fluoride ligand is doubly bridging.[2]

Titanium(III) fluoride
Titanium(III) fluoride
Names
IUPAC name
Titanium(III) fluoride
Other names
Titanium trifluoride
Titanous fluoride
Trifluorotitanium
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.379 Edit this at Wikidata
EC Number
  • 236-732-4
  • InChI=1S/3FH.Ti/h3*1H;/q;;;+3/p-3 checkY
    Key: NLPMQGKZYAYAFE-UHFFFAOYSA-K checkY
  • InChI=1/3FH.Ti/h3*1H;/q;;;+3/p-3
    Key: NLPMQGKZYAYAFE-DFZHHIFOAU
  • F[Ti](F)F
Properties
TiF3
Molar mass 104.862 g/mol
Appearance violet to purple-red powder
Density 2.98 g/cm3
Melting point 1,200 °C (2,190 °F; 1,470 K)
Boiling point 1,400 °C (2,550 °F; 1,670 K)
soluble
+1300·10−6 cm3/mol
Structure
Rhombohedral, hR24
R-3c, No. 167
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Corrosive
GHS labelling:
GHS05: Corrosive
Danger
H314
P280, P305+P351+P338, P310
Related compounds
Other anions
Titanium(III) bromide
Titanium(III) chloride
Titanium(III) iodide
Related compounds
Titanium(IV) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Titanium(III) fluoride can be prepared by dissolution of titanium metal in hydrogen fluoride. In air, it slowly oxidizes to titanium(IV).[1]

References

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  1. ^ a b Meshri, Dayal T. (2000). "Fluorine Compounds, Inorganic, Titanium". Kirk-Othmer Encyclopedia of Chemical Technology. doi:10.1002/0471238961.2009200113051908.a01. ISBN 978-0-471-48494-3.
  2. ^ H. Sowa; H. Ahsbahs (1998). "Pressure-Induced Octahedron Strain in VF3-Type Compounds". Acta Crystallogr. B54 (5): 578–584. Bibcode:1998AcCrB..54..578S. doi:10.1107/S0108768198001207.