Vanadium tetrafluoride

Vanadium(IV) fluoride  | 3D model of vanadium(IV) fluoride | 3D model of vanadium(IV) fluoride

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Names
IUPAC name

vanadium tetrafluoride

Identifiers

CAS Number

* 10049-16-8

3D model (JSmol)

* Interactive image

ChemSpider |

* 11226730 Y

EC Number |

* 233-171-7

PubChem CID

* 44717705

UNII |

* M372NC1A3B Y

UN number | UN2923

InChI

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

Key: JTWLHYPUICYOLE-UHFFFAOYSA-J Y

* InChI=1/4FH.V/h4*1H;/q;;;;+4/p-4

Key: JTWLHYPUICYOLE-XBHQNQODAC

SMILES

* [V+4].[F-].[F-].[F-].[F-]

Properties

Chemical formula

| F4V
Molar mass | 126.9351 g·mol−1
Appearance  | Lime green powder, hygroscopic[1]
Odor | Odorless
Density | 3.15 g/cm3 (20 °C)[1]
2.975 g/cm3 (23 °C)[2]
Melting point |  325 °C (617 °F; 598 K)
at 760 mmHg decomposes[1]
Boiling point | Sublimes[1]

Solubility in water

| Very soluble[1]
Solubility | Soluble in acetone, acetic acid
Very slightly soluble in SO2Cl2, alcohols, CHCl3[2]
Structure

Crystal structure

| Monoclinic, mP10

Space group

| P21/c, No. 14
Thermochemistry

Std molar
entropy (S ~~o~~ 298)

| 126 J/mol·K[3]

Std enthalpy of
formation (ΔfH⦵298)

| −1412 kJ/mol[3]

Gibbs free energy (ΔfG˚)

| −1312 kJ/mol[3]
Hazards
GHS pictograms |
GHS Signal word | Danger

GHS hazard statements

| H300, H330, H314

GHS precautionary statements

| P260, P301+310, P303+361+353, P304+340, P305+351+338, P320, P330, P405, P501
Eye hazard | Causes serious damage
Skin hazard | Causes burns

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

Tracking categories (test):

* PairSizeSet

Vanadium(IV) fluoride (VF4) is an inorganic compound of vanadium and fluorine. It is paramagnetic yellow-brown solid that is very hygroscopic.[2] Unlike the corresponding vanadium tetrachloride, the tetrafluoride is not volatile because it adopts a polymeric structure.[5] It decomposes before melting.

## Contents

* 1 Preparation and reactions
* 2 Structure
* 3 References
* 4 External links

## Preparation and reactions

VF4 can be prepared by treating VCl4 with HF:

VCl4 \+ 4 HF → VF4 \+ 4 HCl

It was first prepared in this way.[6]

It decomposes at 325 °C, undergoing disproportionation to the tri- and pentafluorides:[2]

2 VF4 → VF3 \+ VF5

## Structure

The structure of VF4 is related to that of SnF4. Each vanadium centre is octahedral, surrounded by six fluoride ligands. Four of the fluoride centers bridge to adjacent vanadium centres.[7]

* V4+;  F−

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 Lide, David R., ed (2009). CRC Handbook of Chemistry and Physics (90th ed.). Boca Raton, Florida: CRC Press. ISBN 978-1-4200-9084-0.
2. ↑ 2.0 2.1 2.2 2.3 Kwasnik, W. (1963). Brauer, Georg. ed. Handbook of Preparative Inorganic Chemistry (UK ed.). London: Academic Press. pp. 252–253. https://archive.org/details/handbookpreparat01brau_517.
3. ↑ 3.0 3.1 3.2 Anatolievich, Kiper Ruslan. "vanadium(IV) fluoride". http://chemister.ru/Database/properties-en.php?dbid=1&id=408.
4. ↑ "Vanadium(IV) fluoride, 95%". Alfa Aesar. http://www.alfa.com/en/catalog/11543.
5. ↑ Cotton, F. Albert; Wilkinson, Geoffrey; Murillo, Carlos A.; Bochmann, Manfred (1999), Advanced Inorganic Chemistry (6th ed.), New York: Wiley-Interscience, p. 716, ISBN 0-471-19957-5
6. ↑ Otto Ruff, Herbert Lickfett "Vanadinfluoride" Chemische Berichte 1911, vol. 44, pages 2539–2549. doi:10.1002/cber.19110440379
7. ↑ Becker S., Muller B. G. Vanadium Tetrafluoride, Angew. Chem. Intnl. Ed. Engl. 1990, vol. 29, page 406

## External links

* WebElements

* v
* t
* e

Vanadium compounds

Vanadium(0)|

* V(CO)6

Vanadium(II)|

* VBr2
* VCl2
* VO
* VS

Vanadium(III)|

* VBr3
* VCl3
* VF3
* VI3
* VN
* V2O3
* V2(SO4)3
* V2S3

Vanadium(IV)|

* VC
* VO2
* VS2
* VCl4
* VF4

| Organovanadium(IV) compounds|

* VO(C5H7O2)2

|

Vanadyl(IV) compounds|

* VOSO4

Vanadium(V)|

* V2O5
* VOCl3
* VOF3
* VF5
* V2S5

| Vanadyl(V) compounds|

* VO(ClO4)3

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* v
* t
* e

Fluorine compounds

| HF |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | He

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LiF | BeF2 |  |  |  |  |  |  |  |  |  |  | BF3
B2F4 | CF4 | NF3 | OF2 | F− | Ne
NaF | MgF2 |  |  |  |  |  |  |  |  |  |  | AlF3 | SiF4 | PF3
PF5 | SF2
SF4
SF6 | ClF
ClF3
ClF5 | Ar
KF | CaF2 | ScF3 | TiF3
TiF4 | VF3
VF4
VF5 | CrF2
CrF3
CrF4
CrF5 | MnF2
MnF3 | FeF2
FeF3 | CoF2
CoF3 | NiF2 | CuF
CuF2 | ZnF2 | GaF3 | GeF4 | AsF3
AsF5 | SeF4
SeF6 | BrF3
BrF5 | KrF2
RbF | SrF2 | YF3 | ZrF4 | NbF4
NbF5 | MoF5
MoF6 | TcF6 | RuF3
RuF4
RuF5
RuF6 | RhF6 | PdF2 | AgF
AgF2
Ag2F | CdF2 | InF3 | SnF2
SnF4 | SbF3
SbF5 | TeF4 | IF
IF3
IF5
IF7 | XeF2
XeF4
XeF6
CsF | BaF2 | *  | HfF4 | TaF5 | WF4
WF6 | ReF4
ReF5
ReF6
ReF7 | OsF4
OsF5
OsF6 | IrF3
IrF5
IrF6 | PtF4
PtF6 | AuF3
Au2F10
AuF5·F2
| HgF2
Hg2F2 | TlF
TlF3 | PbF2
PbF4 | BiF3
BiF5 | Po | At | RnF2
Fr | Ra | **  | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og
|  | ↓ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| * | LaF3 | CeF3 | Pr | NdF3 | PmF3 | SmF3
| Eu | Gd | Tb | DyF3 | Ho | Er | Tm | YbF3
| Lu |
| ** | AcF3 | ThF4 | Pa | UF3
UF4
UF5
UF6 | NpF3
NpF4
NpF5
NpF6
| PuF3
PuF4
PuF5
PuF6 | AmF3
AmF4 | CmF3 | Bk | Cf | Es | Fm | Md | No | Lr |

Other|

* AgBF4
* AgPF6
* Cs2AlF5
* K3AlF6
* Na3AlF6
* KAsF6
* LiAsF6
* NaAsF6
* HBF4
* KBF4
* LiBF4
* NaBF4
* RbBF4
* Ba(BF4)2
* Ni(BF4)2
* Pb(BF4)2
* Sn(BF4)2
* BaClF
* BaSiF6
* BaGeF6
* BrOF3
* BrO2F
* CBrF3
* CBr2F2
* CBr3F
* CClF3
* CCl2F2
* CCl3F
* CFN
* CF2O
* CF3I
* CHF3
* CH2F2
* CH3F
* C2Cl3F3
* C2H3F
* C6H5F
* C7H5F3
* C15F33N
* ClFO2
* CrFO4
* CrF2O2
* CsBF4
* NH4F
* FNO
* FNO2
* FNO3
* KHF2
* NaHF2
* ThOF2
* NH5F2
* (NH4)2SiF6
* F2OS
* F3OP
* PSF3
* HPF6
* HSbF6
* NH4PF6
* KPF6
* KSbF6
* LiPF6
* NaPF6
* NaSbF6
* Na2SiF6
* Na2TiF6
* Na2ZrF6
* TlPF6
* IOF3
* K2NbF7
* K2TaF7
* IO3F
* UO2F2

Chemical formulas

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Original source: https://en.wikipedia.org/wiki/Vanadium tetrafluoride. Read more

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Retrieved from "https://handwiki.org/wiki/index.php?title=Chemistry:Vanadium_tetrafluoride&oldid=558237"
*[CID]: Compound ID
*[H300]: Fatal if swallowed
*[H330]: Fatal if inhaled
*[H314]: Causes severe skin burns and eye damage
*[P260]: Do not breathe dust/fume/gas/mist/vapours/spray
*[P301+310]: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
*[P303+361+353]: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower
*[P304+340]: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
*[P305+351+338]: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing
*[P320]: Specific treatment is urgent (see … on this label)
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