Titanium tetrafluoride

Titanium(IV) fluoride  Titanium(IV) fluoride

Names
IUPAC name

Titanium(IV) fluoride

Other names

Titanium tetrafluoride

Identifiers

CAS Number

* 7783-63-3 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 7988529 Y

ECHA InfoCard | 100.029.106
EC Number |

* 232-017-6

PubChem CID

* 121824

UNII |

* T08RW8YRG1 Y

CompTox Dashboard (EPA)

* DTXSID50894996

InChI

* InChI=1S/4FH.Ti/h4*1H;/q;;;;+4/p-4 Y

Key: XROWMBWRMNHXMF-UHFFFAOYSA-J Y

* InChI=1/4FH.Ti/h4*1H;/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
Hazards
GHS labelling:[1]

Pictograms

Signal word

| Danger

Hazard statements

| H302, H312, H314, H332

Precautionary statements

| P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P322, P330, P363, P405
NFPA 704 (fire diamond)  |

Related compounds

Other anions

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

Related compounds

| Titanium(III) fluoride

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Y verify (what is YN ?)

Infobox references

Chemical compound

Titanium(IV) fluoride is the inorganic compound with the formula TiF4. It is a white hygroscopic solid. In contrast to the other tetrahalides of titanium, it adopts a polymeric structure.[2] In common with the other tetrahalides, TiF4 is a strong Lewis acid.

## Preparation and structure

[edit]

The traditional method involves treatment of titanium tetrachloride with excess hydrogen fluoride:[3]

TiCl4 \+ 4 HF → TiF4 \+ 4 HCl

Purification is by sublimation, which involves reversible cracking of the polymeric structure.[4] X-ray crystallography reveals that the Ti centres are octahedral, but conjoined in an unusual columnar structure.[5]

## Reactions

[edit]

Structure of the [Ti4F18]2- dianion

TiF4 forms adducts with many ligands. One example is the complex cis-TiF4(CH3CN)2, which is formed by treatment with acetonitrile.[6] It is also used as a reagent in the preparation of organofluorine compounds.[7] With fluoride, the cluster [Ti4F18]2- forms. It has an adamantane-like Ti4F6 core.[8]

Related to its Lewis acidity, TiF4 forms a variety of hexafluorides also called hexafluorotitanates. Hexafluorotitanic acid has been used commercially to clean metal surfaces. These salts are stable at pH<4 in the presence of hydrogen fluoride, otherwise they hydrolyze to give oxides.[3]

## References

[edit]

1. ^ "Titanium tetrafluoride". pubchem.ncbi.nlm.nih.gov. Retrieved 12 December 2021.
2. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
3. ^ 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.
4. ^ Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 200.
5. ^ Bialowons, H.; Mueller, M.; Mueller, B.G. (1995). "Titantetrafluorid - Eine Überraschend einfache Kolumnarstruktur". Zeitschrift für Anorganische und Allgemeine Chemie. 621 (7): 1227–1231\. doi:10.1002/zaac.19956210720.
6. ^ 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.
7. ^ Blizzard, T. A.; Sikervar, Vikas (2014). "Titanium(IV) Fluoride". Encyclopedia of Reagents for Organic Synthesis. pp. 1–5\. doi:10.1002/047084289X.rn00123.pub2. ISBN 978-0-470-84289-8.
8. ^ Mazej, Zoran; Goreshnik, Evgeny (2009). "Poly[perfluorotitanate(IV)] Salts of [H3O]+, Cs+, [Me4N]+, and [Ph4P]+ and about the Existence of an Isolated [Ti2F9]− Anion in the Solid State". Inorganic Chemistry. 48 (14): 6918–6923\. doi:10.1021/ic9009338. PMID 19545141.

* v
* t
* e

Titanium compounds

Titanium(II)|

* TiCl2
* TiH2
* TiBr2
* TiI2
* TiO
* TiS
* TiSi2

| Organotitanium(II) compounds|

[(C5H5)2Ti(CO)2]

|

Titanium(III)|

* TiAl
* TiBr3
* TiCl3
* TiF3
* TiI3
* TiN
* TiP
* Ti2O3
* Ti2S3

| Organotitanium(III) compounds|

[(C5H5)2TiCl]2

|

Titanium(IV)|

* TiB2
* TiBr4
* TiC
* TiS(S2)
* TiCl4
* Ti(ClO4)4
* TiF4
* H2TiF6
* TiH4
* TiI4
* TiOSO4
* Ti(NMe2)4
* Ti(NO3)4
* TiO2
* H4TiO4
* Ti(C2H3O2)4
* Ti4(OCH2CH3)16
* Ti(OCH(CH3)2)4
* Ti(OCH2CH2CH2CH3)4
* KTiOPO4
* NiO*Sb2O3*20TiO2
* TiS2
* TiSe2
* TiSi2
* Ti(C

| Titanate compounds|

* BaTiO3
* Ba2TiO4
* Bi4Ti3O12
* CaTiO3
* CaCu3Ti4O12
* CaZrTi2O7
* Cs2TiO3
* Dy2Ti2O7
* EuBaTiO4
* FeTiO3
* Ho2Ti2O7
* Li2TiO3
* MnTiO3
* Na2Ti3O7
* Na0.5Bi0.5TiO3
* Na2TiF6
* K2TiF6
* Li2TiF6
* Rb2TiF6
* NiTiO3
* PbTiO3
* Pb(Zr,Ti)O3
* SrTiO3
* ZnTiO3

|

Organotitanium(IV) compounds|

* [(C5H5)2TiCl2]
* [(C5H5)2Ti(CH3)2]
* [(C5H5)2TiS5]
* [(C5H5)2Ti(μ-Cl)(μ-CH2)Al(CH3)2]
* [(η5-C5H4-CH2C6H4OCH3)2TiCl2]

* v
* t
* e

Salts and covalent derivatives of the fluoride ion

| HF |  |  |  | ?HeF2

|
|
|
|

LiF | BeF2 | BF
BF3
B2F4
+BO3 | CF4
CxFy
+CO3 | NF3
FN3
N2F2

N2F4
NF2
?NF5

+NO3 | OF2
O2F2

O3F2
O4F2
?OF4 | F2 | Ne
NaF | MgF2 | AlF
AlF3 | SiF4 | P2F4
PF3
PF5
+PO4 | S2F2
SF2
S2F4
SF3
SF4
S2F10
SF6
+SO4 | ClF
ClF3
ClF5 | ?ArF2
?ArF4
KF | CaF
CaF2 |  | ScF3 | TiF2
TiF3
TiF4 | VF2
VF3
VF4
VF5 | CrF2
CrF3
CrF4
CrF5
?CrF6 | MnF2
MnF3
MnF4
?MnF5 | FeF2
FeF3
FeF4 | CoF2
CoF3
CoF4 | NiF2
NiF3
NiF4 | CuF
CuF2
?CuF3 | ZnF2 | GaF2
GaF3 | GeF2
GeF4 | AsF3
AsF5 | Se2F2
SeF4
SeF6
+SeO3 | BrF
BrF3
BrF5 | KrF2
?KrF4
?KrF6
RbF | SrF
SrF2 |  | YF3 | ZrF2
ZrF3
ZrF4 | NbF4
NbF5 | MoF4
MoF5
MoF6 | TcF4
TcF

TcF6 | RuF3
RuF

RuF5
RuF6 | RhF3
RhF4
RhF5
RhF6 | PdF2
Pd[PdF6]
PdF4
?PdF6 | Ag2F
AgF
AgF2
AgF3 | CdF2 | InF
InF3 | SnF2
SnF4 | SbF3
SbF5 | TeF4
?Te2F10
TeF6
+TeO3 | IF
IF3
IF5
IF7
+IO3 | XeF2
XeF4
XeF6
?XeF8
CsF | BaF2 |  | LuF3 | HfF4 | TaF5 | WF4
WF5
WF6 | ReF4
ReF5
ReF6
ReF7 | OsF4
OsF5
OsF6
?OsF

?OsF
8 | IrF2
IrF3
IrF4
IrF5
IrF6 | PtF2
Pt[PtF6]
PtF4
PtF5
PtF6 | AuF
AuF3
Au2F10
?AuF6
AuF5•F2 | Hg2F2
HgF2
?HgF4 | TlF
TlF3 | PbF2
PbF4 | BiF3
BiF5 | ?PoF2
PoF4
PoF6 | AtF
?AtF3
?AtF5 | RnF2
?RnF

?RnF

FrF  | RaF2 |  | LrF3 | Rf  | Db  | Sg  | Bh  | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og
| ↓  |  |
| LaF3 | CeF3
CeF4 | PrF3
PrF4 | NdF2
NdF3
NdF4 | PmF3 | SmF
SmF2
SmF3 | EuF2
EuF3 | GdF3 | TbF3
TbF4 | DyF2
DyF3
DyF4 | HoF3 | ErF3 | TmF2
TmF3 | YbF2
YbF3
AcF3 | ThF3
ThF4 | PaF4
PaF5 | UF3
UF4
UF5
UF6 | NpF3
NpF4
NpF5
NpF6 | PuF3
PuF4
PuF5
PuF6 | AmF2
AmF3
AmF4
?AmF6 | CmF3
CmF4
?CmF6 | BkF3
BkF
4 | CfF3
CfF4 | EsF3
EsF4
?EsF6 | Fm  | Md  | No
*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[H302]: H302: Harmful if swallowed
*[H312]: H312: Harmful in contact with skin
*[H314]: H314: Causes severe skin burns and eye damage
*[H332]: H332: Harmful if inhaled
*[P260]: P260: Do not breathe dust/fume/gas/mist/vapours/spray.
*[P261]: P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
*[P264]: P264: Wash ... thoroughly after handling.
*[P270]: P270: Do not eat, drink or smoke when using this product.
*[P271]: P271: Use only outdoors or in a well-ventilated area.
*[P280]: P280: Wear protective gloves/protective clothing/eye protection/face protection.
*[P301+P312]: P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
*[P301+P330+P331]: P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
*[P302+P352]: P302+P352: IF ON SKIN: Wash with soap and water.
*[P303+P361+P353]: P303+P361+P353: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water [or shower].
*[P304+P312]: P304+P312: IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell.
*[P304+P340]: P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
*[P305+P351+P338]: P305+P351+P338: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
*[P310]: P310: Immediately call a POISON CENTER or doctor/physician.
*[P312]: P312: Call a POISON CENTER or doctor/physician if you feel unwell.
*[P322]: P322: Specific measures (see ... on this label).
*[P330]: P330: Rinse mouth.
*[P363]: P363: Wash contaminated clothing before reuse.
*[P405]: P405: Store locked up.
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template