Manganese(III) fluoride

Short description: Chemical compound

Manganese(III) fluoride

Names
IUPAC name

Manganese(III) fluoride

Other names

Manganese trifluoride, manganic fluoride

Identifiers

CAS Number

* 7783-53-1 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 74193 Y

EC Number |

* 232-006-6

PubChem CID

* 82213

RTECS number |

* OP0882600

UNII |

* VHG84D268X Y

InChI

* InChI=1S/3FH.Mn/h3*1H;/q;;;+3/p-3 Y

Key: SRVINXWCFNHIQZ-UHFFFAOYSA-K Y

* InChI=1/3FH.Mn/h3*1H;/q;;;+3/p-3

Key: SRVINXWCFNHIQZ-DFZHHIFOAX

SMILES

* [Mn+3].[F-].[F-].[F-]

Properties

Chemical formula

| MnF3
Molar mass | 111.938 g/mol
Appearance  | purple-pink powder
hygroscopic
Density | 3.54 g/cm3
Melting point | > 600 °C (1,112 °F; 873 K) (decomposes)

Solubility in water

| hydrolysis

Magnetic susceptibility (χ)

| +10,500·10−6 cm3/mol
Structure

Crystal structure

| Monoclinic, mS48

Space group

| C2/c, No. 15

Coordination geometry

| distorted octahedral
Hazards
Main hazards | toxic fumes
GHS pictograms |
GHS Signal word | danger
Related compounds

Other anions

| manganese(III) oxide, manganese(III) acetate

Other cations

| chromium(III) fluoride, iron(III) fluoride. cobalt(III) fluoride

Related compounds

| manganese(II) fluoride, manganese(IV) fluoride

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

N verify (what is YN ?)
Infobox references

Manganese(III) fluoride (also known as Manganese trifluoride) is the inorganic compound with the formula MnF3. This red/purplish solid is useful for converting hydrocarbons into fluorocarbons, i.e., it is a fluorination agent.[2] It forms a hydrate and many derivatives.

## Contents

* 1 Synthesis, structure and reactions
* 1.1 Structure
* 1.2 Reactions
* 2 See also
* 3 References
* 3.1 Further reading
* 4 External links

## Synthesis, structure and reactions

MnF3 can be prepared by treating a solution of MnF2 in hydrogen fluoride with fluorine:[3]

MnF2 \+ 0.5 F2 → MnF3

It can also be prepared by the reaction of elemental fluorine with a manganese(II) halide at ~250 °C.[4]

### Structure

Like vanadium(III) fluoride, MnF3 features octahedral metal centers with the same average M-F bond distances. In the Mn compound, however, is distorted (and hence a monoclinic unit cell vs. a higher symmetry one) due to the Jahn-Teller effect, with pairs of Mn-F distances of 1.79, 1.91, 2.09 Å.[5][6][7]

The hydrate MnF3.3H2O is obtained by crystallisation of MnF3 from hydrofluoric acid. The hydrate exists as two polymorphs, with space groups P21/c and P21/a. Each consists of the salt [Mn(H2O)4F2]+[Mn(H2O)2F4]− ).[8]

### Reactions

MnF3 is Lewis acidic and forms a variety of derivatives. One example is K2MnF3(SO4).[9] MnF3 reacts with sodium fluoride to give the octahedral hexafluoride:[4]

3NaF + MnF3 → Na3MnF6

Related reactions salts of the anions MnF52− or MnF4−. These anions adopt chain and layer structures respectively, with bridging fluoride. Manganese remains 6 coordinate, octahedral, and trivalent in all of these materials.[4]

Manganese(III) fluoride fluorinates organic compounds including aromatic hydrocarbons,[10] cyclobutenes,[11] and fullerenes.[12]

On heating, MnF3 decomposes to manganese(II) fluoride.[13][14]

MnF3 is a source of MnCl3 complexes by reaction with bismuth trichloride.[15]

## See also

* CoF3, another fluorinating agent based on a transition metal in an oxidising +3 state.

## References

1. ↑ GHS: sigma-aldrich 339296 [|permanent dead link|dead link}}]
2. ↑ Burley, G. A.; Taylor, R. (2004). "Manganese(III) Fluoride". Encyclopedia of Reagents for Organic Synthesis. J. Wiley & Sons. doi:10.1002/047084289X.rn00411.
3. ↑ Z. Mazej (2002). "Room temperature syntheses of MnF3, MnF4 and hexafluoromanganete(IV) salts of alkali cations". Journal of Fluorine Chemistry 114 (1): 75–80. doi:10.1016/S0022-1139(01)00566-8.
4. ↑ 4.0 4.1 4.2 Inorganic chemistry, Catherine E. Housecroft, A.G. Sharpe, pp.711-712, section Manganese (III) , googlebooks link
5. ↑ Wells, A.F. (1984) Structural Inorganic Chemistry, Oxford: Clarendon Press. ISBN 0-19-855370-6.
6. ↑ Hepworth, M. A.; Jack, K. H.; Nyholm, R. S. (1957). "Interatomic Bonding in Manganese Trifluoride". Nature 179 (4552): 211–212. doi:10.1038/179211b0. Bibcode: 1957Natur.179..211H.
7. ↑ M. A. Hepworth; K. H. Jack (1957). "The Crystal Structure of Manganese Trifluoride, MnF3". Acta Crystallographica 10 (5): 345–351. doi:10.1107/S0365110X57001024.
8. ↑ Molinier Michel; Massa Werner (1992). "Structures of two polymorphs of MnF3·3H2O". Journal of Fluorine Chemistry 57 (1–3): 139–146. doi:10.1016/S0022-1139(00)82825-0.
9. ↑ Bhattacharjee, M. N; Chaudhuri, M. K. (2007). "Dipotassium Trifluorosulfato‐Manganate(III)". Inorganic Syntheses. 27. 312–313. doi:10.1002/9780470132586.ch61. ISBN 978-0-470-13258-6.
10. ↑ Fluorination of p-chlorobenzotrifluoride by manganese trifluoride A. Kachanov, V. Kornilov, V.Belogay , Fluorine Notes :Vol. 1 (1) November–December 1998 , via notes.fluorine1.ru
11. ↑ Junji Mizukado; Yasuhisa Matsukawa; Heng-dao Quan; Masanori Tamura; Akira Sekiya (2006). "Fluorination of Fluoro-Cyclobutene with High-Valency Metal Fluoride". Journal of Fluorine Chemistry 127: 79–84. doi:10.1016/j.jfluchem.2005.10.007.
12. ↑ V. É. Aleshina; A. Ya. Borshchevskii; E. V. Skokan; I. V. Arkhangel'skii; A.V. Astakhov; N.B. Shustova (2002). "Fluorination of the Cubic and Hexagonal C60 Modifications by Crystalline Manganese Trifluoride". Physics of the Solid State 44 (4): 629–630. doi:10.1134/1.1470543. Bibcode: 2002PhSS...44..629A.
13. ↑ Chisholm, Hugh, ed (1911). "Manganese § Manganic Salts". Encyclopædia Britannica. 17 (11th ed.). Cambridge University Press. p. 570.
14. ↑ In situ time-resolved X-ray diffraction study of manganese trifluoride thermal decomposition , J.V. Raua, V. Rossi Albertinib, N.S. Chilingarova, S. Colonnab, U. Anselmi Tamburini, Journal of Fluorine Chemistry 4506 (2001) 1–4 , online version
15. ↑ Nachtigall, Olaf; Pataki, Astrid; Molski, Matthias; Lentz, Dieter; Spandl, Johann (2015). "Solvates of Manganese Trichloride Revisited - Synthesis, Isolation, and Crystal Structure of MnCl3(THF)3". Zeitschrift für Anorganische und Allgemeine Chemie 641 (6): 1164–1168. doi:10.1002/zaac.201500106.

### Further reading

* Novel syntheses of some binary fluorides: the role of anhydrous hydrogen fluoride Acta Chim. Slov. 1999, 46(2), pp. 229–238, Zoran Mazej, Karel Lutar and Boris Žemva
* Knudsen Cell mass spectrometry study of Manganese Trifluoride vaporisation, High temperature corrosion and materials chemistry IV: proceedings of the International Symposium, pp. 521–525, google books

## External links

* National Pollutant Inventory: Fluoride and compounds fact sheet
* National Pollutant Inventory: Manganese and compounds Fact Sheet

* v
* t
* e

Manganese compounds

* MnO
* Mn3O4
* Mn5O8
* MnS
* MnS2
* MnSO4
* MnSe2
* MnSe
* MnTe
* Mn(NO3)2
* MnCO3
* MnCl2
* MnCl3
* MnCl4
* MnF2
* MnBr2
* MnI2
* MnTiO3
* MnMoO4
* Mn(CH3COO)2
* Mn2O3
* MnF3
* K6Mn2O6
* MnO2
* Mn(OH)2
* MnO3
* K3MnO4
* MnF4
* Na2MnO4
* K2MnO4
* Mn2O7
* NaMnO4
* KMnO4
* NH4MnO4
* AgMnO4
* Ca(MnO4)2
* Ba(MnO4)2
* MnH(CO)5
* Mn2(CO)10

* v
* t
* e

Salts and covalent derivatives of the fluoride ion

HF |  |  |  | He

|
|
|
|

LiF | BeF2 | BF
BF3
B2F4 | CF4
other compounds | NF3
FN3
N2F2
N2F4
NF5§  | F2O
F2O2
other compounds | F2 | Ne
NaF | MgF2 | AlF
AlF3 | SiF4 | P2F4
PF3
PF5 | S2F2
SF2
SF4
SF6 | ClF
ClF3
ClF5 | Ar
KF | CaF
CaF2 | ScF3 | TiF2
TiF3
TiF4 | VF2
VF3
VF4
VF5 | CrF2
CrF3
CrF4
CrF5
CrF6§  | MnF2 | FeF2
FeF3 | CoF2
CoF3 | NiF2 | CuF
CuF2 | ZnF2 | GaF2
GaF3 | GeF2
GeF4 | AsF3
AsF5 | Se2F2
SeF4
SeF6 | BrF
BrF3
BrF5 | KrF2
RbF | SrF
SrF2 | YF3 | ZrF3
ZrF4 | NbF4
NbF5 | MoF2
MoF3
MoF4
MoF5
MoF6 | TcF4
TcF6 | RuF3
RuF5
RuF6 | RhF3
RhF5
RhF6 | PdF2 | AgF | CdF2 | InF
InF2
InF3 | SnF2
SnF4 | SbF3
SbF5 | Te3F2
TeF4
TeF6 | IF
IF3</br>IF5</br>IF7 | XeF2
XeF4
XeF6
CsF | BaF2 |  | HfF4 | TaF5 | WF2
WF3
WF4
WF5
WF6 | Re3F9
ReF4
ReF5
ReF6
ReF7 | OsF4
OsF5
OsF6 | IrF2
IrF3
IrF4
IrF5
IrF6 | PtF2
PtF4
PtF5
PtF6 | AuF
AuF3
Au2F10
AuF5•F2 | Hg2F2
HgF2
HgF4 | TlF | PbF2
PbF4 | BiF3
BiF5 | PoF2
PoF4
PoF6 | AtF  | RnF2
FrF | RaF2 |  | Rf  | Db  | Sg  | Bh  | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og
| ↓  |  |
LaF3 | CeF3
CeF4 | PrF3 | NdF2,
NdF3 | PmF3 | SmF2,
SmF3 | EuF2,
EuF3 | GdF3 | TbF3 | DyF2,
DyF3 | HoF3 | ErF3 | TmF2
TmF3 | YbF2
YbF3 | LuF3
AcF3 | ThF4 | PaF5 | UF3
UF4
UF5
UF6 | NpF4
NpF6 | PuF3
PuF6 | AmF2
AmF3 | CmF3 | BkF3 | CfF3 | EsF3 | Fm  | Md  | No  | LrF3

§ means the substance has not been made.

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Manganese(III) fluoride. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Chemistry:Manganese(III)_fluoride&oldid=551540"
*[CID]: Compound ID
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template