Titanium tetrafluoride: Difference between revisions

Titanium(IV) fluoride
Names
	IUPAC name Titanium(IV) fluoride
	Other names Titanium tetrafluoride
Identifiers
CAS Number	7783-63-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	7988529 ;
ECHA InfoCard	100.029.106
EC Number	232-017-6;
PubChem CID	121824;
UNII	T08RW8YRG1 ;
CompTox Dashboard (EPA)	DTXSID50894996 ;
	InChI InChI=1S/4FH.Ti/h41H;/q;;;;+4/p-4 Key: XROWMBWRMNHXMF-UHFFFAOYSA-J ; InChI=1/4FH.Ti/h41H;/q;;;;+4/p-4 Key: XROWMBWRMNHXMF-XBHQNQODAM;
	SMILES F[Ti](F)(F)F;
Properties
Chemical formula	TiF4
Molar mass	123.861 g/mol
Appearance	white powder
Density	2.798 g/cm3
Melting point	377 °C (711 °F; 650 K)
Boiling point	sublimes
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

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Revision as of 18:20, 14 January 2021

|Section7=! colspan=2 style="background: #f8eaba; text-align: center;" |Hazards

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|- |Section8=! colspan=2 style="background: #f8eaba; text-align: center;" |Related compounds

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Other anions

| Titanium(IV) bromide
Titanium(IV) chloride
Titanium(IV) iodide |-

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Related compounds

| Titanium(III) fluoride |- }}

Titanium(IV) fluoride is the inorganic compound with the formula Ti F₄. It is a white hygroscopic solid. In contrast to the other tetrahalides of titanium, it adopts a polymeric structure.^[1] In common with the other tetrahalides, TiF₄ is a strong Lewis acid.

Preparation, structure, reactions

The traditional method involves treatment of titanium tetrachloride with excess hydrogen fluoride:

TiCl₄ + 4 HF → TiF₄ + 4 HCl

Purification is by sublimation, which involves reversible cracking of the polymeric structure.^[2] X-ray crystallography reveals that the Ti centres are octahedral, but conjoined in an unusual columnar structure.^[3]

TiF₄ forms adducts with many ligands. One example is cis-TiF₄(MeCN)₂, which is formed by treatment with acetonitrile.^[4]

References

^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
^ Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 200.
^ Bialowons, H.; Mueller, M.; Mueller, B.G. (1995). "Titantetrafluorid - Eine Überraschend einfache Kolumnarstruktur". Zeitschrift für Anorganische und Allgemeine Chemie. 621: 1227–1231. doi:10.1002/zaac.19956210720.
^ Nikiforov, Grigory B.; Roesky, Herbert W.; Koley, Debasis (2014). "A survey of titanium fluoride complexes, their preparation, reactivity, and applications". Coordination Chemistry Reviews. 258–259: 16–57. doi:10.1016/j.ccr.2013.09.002.

This inorganic compound–related article is a stub. You can help Wikipedia by expanding it.

[1] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.

[2] Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 200.

[3] Bialowons, H.; Mueller, M.; Mueller, B.G. (1995). "Titantetrafluorid - Eine Überraschend einfache Kolumnarstruktur". Zeitschrift für Anorganische und Allgemeine Chemie. 621: 1227–1231. doi:10.1002/zaac.19956210720.

[4] Nikiforov, Grigory B.; Roesky, Herbert W.; Koley, Debasis (2014). "A survey of titanium fluoride complexes, their preparation, reactivity, and applications". Coordination Chemistry Reviews. 258–259: 16–57. doi:10.1016/j.ccr.2013.09.002.

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@@ Line 27: / Line 27: @@
 | Formula = TiF<sub>4</sub>
 | MolarMass = 123.861 g/mol
-| Appearance = white powder<br /> [[hygroscopic]]
+| Appearance = white powder
 | Density = 2.798 g/cm<sup>3</sup>
 | MeltingPtC = 377
 | BoilingPt = sublimes
+ }}
-| Solubility =
-  }}
+ }}
-|Section3={{Chembox Structure
-| CrystalStruct =
-  }}
 |Section7={{Chembox Hazards
 | EUClass = not listed
@@ Line 41: / Line 38: @@
 | NFPA-F = 0
 | NFPA-R = 0
-| NFPA-S =
  }}
 |Section8={{Chembox Related
 | OtherAnions = [[Titanium(IV) bromide]] <br/> [[Titanium(IV) chloride]] <br/> [[Titanium(IV) iodide]]
 | OtherCompounds = [[Titanium(III) fluoride]]
-  }}
+ }}
 }}
-'''Titanium(IV) fluoride''' is the [[inorganic compound]] with the [[chemical formula|formula]] [[Titanium|Ti]][[Fluoride|F<sub>4</sub>]].  It is a white [[hygroscopic]] solid.  In contrast to the other tetrahalides of titanium, it adopts a polymeric structure.<ref>{{Greenwood&Earnshaw2nd}}</ref>  In common with the other tetrahalides,  TiF<sub>4</sub> is a strong [[Lewis acid]].
+'''Titanium(IV) fluoride''' is the [[inorganic compound]] with the [[chemical formula|formula]] [[Titanium|Ti]][[Fluoride|F<sub>4</sub>]].  It is a white [[hygroscopic]] solid. In contrast to the other tetrahalides of titanium, it adopts a polymeric structure.<ref>{{Greenwood&Earnshaw2nd}}</ref>  In common with the other tetrahalides, TiF<sub>4</sub> is a strong [[Lewis acid]].
 ==Preparation, structure, reactions==
 The traditional method involves treatment of titanium tetrachloride with excess [[hydrogen fluoride]]:
-:TiCl<sub>4</sub>  +  4 HF   →   TiF<sub>4</sub>  +  4 HCl
+:TiCl<sub>4</sub> + 4 HF → TiF<sub>4</sub> + 4 HCl
 Purification is by sublimation, which involves reversible cracking of the polymeric structure.<ref>Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 200.</ref>
 X-ray crystallography reveals that the Ti centres are octahedral, but conjoined in an unusual columnar structure.<ref>{{cite journal|author1=Bialowons, H.|author2=Mueller, M.|author3=Mueller, B.G.|title=Titantetrafluorid - Eine Überraschend einfache Kolumnarstruktur|journal=Zeitschrift für Anorganische und Allgemeine Chemie|year=1995|volume= 621|pages=1227–1231|doi=10.1002/zaac.19956210720}}</ref>
@@ Line 68: / Line 64: @@
 [[Category:Metal halides]]
 [[Category:Titanium compounds]]
 {{inorganic-compound-stub}}