Titanium (IV) fluoride

Crystal structure
	__ Ti 4+ __ F -
Crystal system	orthorhombic
Space group	Pnma (No. 62)
Lattice parameters	a = 2281.1, b = 384.8, c = 956.8 pm, Z = 12
General
Surname	Titanium (IV) fluoride
other names	Titanium tetrafluoride
Ratio formula	TiF 4
Brief description	colorless solid
External identifiers / databases
EC number	232-017-6
ECHA InfoCard	100.029.106
PubChem	121824
Wikidata	Q126258
properties
Molar mass	123.86 g mol −1
Physical state	firmly
density	2.798 g cm −3 (25 ° C)
Melting point	284 ° C (sublimation)
solubility	reacts with water; soluble in alcohol when heated; insoluble in ether;
safety instructions
H and P phrases	H: 302-312-332-314
	P: 280-305 + 351 + 338-310
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Titanium (IV) fluoride is an inorganic chemical compound of titanium from the group of fluorides .

Extraction and presentation

Titanium (IV) fluoride can be obtained by reacting titanium (IV) chloride with hydrogen fluoride .

{\ displaystyle {\ ce {TiCl4 + 4HF -> TiF4 + 4HCl}}}

properties

Titanium (IV) fluoride is a colorless, loose, very hygroscopic powder that reacts with water with hissing. The compound crystallizes in a separate type structure, whose characteristic feature insulated from one another, from TiF ₆ - octahedra constructed columns ( columnar ), space group Pnma (space group No.. 62) with a = 2281.1, b = 384.8, c = 956.8 pm and Z = 12. Template: room group / 62

use

Titanium (IV) fluoride is used for the synthesis of glycosyl fluorides, fluorohydrins and the addition of carbanions to aldehydes and imines . It also serves as a catalyst for chemoselective syntheses and removal of protecting groups from geminal diacetates of aldehydes. Its use in toothpaste has also been studied.

Individual evidence

↑ ^a ^b H. Bialowons, M. Müller, BG Müller: Titanium tetrafluoride - a surprisingly simple columnar structure. In: Journal of Inorganic and General Chemistry. 621, 1995, pp. 1227-1231, doi : 10.1002 / zaac.19956210720 .

↑ ^a ^b ^c ^d ^e ^f ^g ^h Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1343.

↑ ^a ^b ^c ^d data sheet Titanium (IV) fluoride from Sigma-Aldrich , accessed on August 8, 2012 ( PDF ).

↑ N. Schlueter, C. Ganss, U. Mueller, J. .. Klimek: Effect of Titanium Tetrafluoride and Sodium Fluoride on Erosion Progression in Enamel and Dentine in Vitro. ( Memento of the original from February 1, 2014 in the Internet Archive ) Info: The @1@ 2 archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 180 kB) In: Caries Research . 41, 2007, pp. 141-145, doi : 10.1159 / 000098048 .

[DOI10.1002/zaac.19956210720-1] H. Bialowons, M. Müller, BG Müller: Titanium tetrafluoride - a surprisingly simple columnar structure. In: Journal of Inorganic and General Chemistry. 621, 1995, pp. 1227-1231, doi : 10.1002 / zaac.19956210720 .

[brauer-2] ↑ ^a ^b ^c ^d ^e ^f ^g ^h Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1343.

[Sigma-3] ta sheet Titanium (IV) fluoride from Sigma-Aldrich , accessed on August 8, 2012 ( PDF ).

[DOI10.1159/000098048-4] N. Schlueter, C. Ganss, U. Mueller, J. .. Klimek: Effect of Titanium Tetrafluoride and Sodium Fluoride on Erosion Progression in Enamel and Dentine in Vitro. ( Memento of the original from February 1, 2014 in the Internet Archive ) Info: The @1@ 2 archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 180 kB) In: Caries Research . 41, 2007, pp. 141-145, doi : 10.1159 / 000098048 .