15195-58-1

Basic information

• Product Name: manganese(4+) tetrafluoride
• CAS NO: 15195-58-1
• Molecular Formula: F₄Mn
• Molecular Weight: 130.9317
• Mol File: 15195-58-1.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: manganese(4+) tetrafluoride(CAS DataBase Reference)
• NIST Chemistry Reference: manganese(4+) tetrafluoride(15195-58-1)
• EPA Substance Registry System: manganese(4+) tetrafluoride(15195-58-1)

Safety Data

• Hazardous Substances Data: 15195-58-1(Hazardous Substances Data)

Usage

General Description

Manganese(IV) tetrafluoride is a chemical compound with the formula MnF4. It is a dark purple, crystalline solid with a high melting point and is insoluble in water. Manganese(IV) tetrafluoride is primarily used as a reagent in organic synthesis and as a precursor to other manganese compounds. It is also used in the production of ceramics, glass, and in the manufacturing of electronic components. Manganese(IV) tetrafluoride is considered to be highly toxic and should be handled with caution due to its potential health hazards.

Synthetic route

manganese (7439-96-5) + fluorine (7782-41-4) → manganese tetrafluoride (15195-58-1)

Conditions	Yield
600°C, some min;	>99

manganese(IV) oxide (1313-13-9) + fluorine (7782-41-4) → manganese tetrafluoride (15195-58-1)

Conditions	Yield
In neat (no solvent) N2 carrier gas; T > 793 K;

manganese(III) fluoride (7783-53-1) + terbium tetrafluoride (36781-15-4) → manganese tetrafluoride (15195-58-1) + terbium(III) fluoride (13708-63-9)

Conditions	Yield
In neat (no solvent) react. MnF3 and TbF4 at 650-780 K;

manganese(III) fluoride (7783-53-1) + fluorine (7782-41-4) → manganese tetrafluoride (15195-58-1)

Conditions	Yield
In neat (no solvent) Kinetics; pelletized MnF2 (pretreated at 400°C), 450 - 700°C, partial pressure of fluorine 1.0 - 10.1 kPa, linear gas-flow rate 2 - 3 cm/s (mixt. F2 + N2); determined gravimetrically; elem. anal.;

{MnF6}(2-) (25467-96-3) + arsenic pentafluoride (7784-36-3) → manganese tetrafluoride (15195-58-1)

Conditions	Yield
In hydrogen fluoride

manganese(II) fluoride + krypton difluoride (13773-81-4) → manganese tetrafluoride (15195-58-1)

Conditions	Yield
In hydrogen fluoride byproducts: Kr, F2, KrF2; HF (liquid); react. with excess KrF2 at room temp.; volatiles pumped off, elem. anal.;
In hydrogen fluoride HF (liquid); KrF2 added to soln. of MnF2 in HF at -196°C, slowly warmed to room temp.; volatiles pumped off, elem. anal.;

manganese(II) fluoride + fluorine (7782-41-4) → manganese tetrafluoride (15195-58-1)

Conditions	Yield
In neat (no solvent) Kinetics; pelletized MnF2 (pretreated at 400°C), 450 - 540°C, partial pressure of fluorine 1.0 - 10.1 kPa, linear gas-flow rate 2 - 3 cm/s (mixt. F2 + N2); determined gravimetrically;
With HF; H2O2 In neat (no solvent) High Pressure; 380-400°C, F2-pressure about 3 kbar, 25-35 d;;
In neat (no solvent) at 550℃; Flow reactor;

manganese tetrafluoride (15195-58-1) + water (7732-18-5) → MnOF + hydrogen fluoride (7664-39-3) + oxygen (80937-33-3)

Conditions	Yield
In neat (no solvent) Kinetics; moist N2 or Ar (different p(H2O)), heating up to 345°C;

manganese tetrafluoride (15195-58-1) → manganese(III) fluoride (7783-53-1) + fluorine (7782-41-4)

Conditions	Yield
In neat (no solvent) Kinetics; Ar atmosphere; heating over 380°;

manganese tetrafluoride (15195-58-1) + strontium chloride → strontium chloride - strontium fluoride

Conditions	Yield
In melt byproducts: MnCl2; the mixture of SrCl2 and MnF2 was heated at 1000 °C, the melt was leached out with cold water for several times to remove MnCl2;; the residue was washed with alcohol and dried;;

manganese tetrafluoride (15195-58-1) → manganese(III) fluoride

Conditions	Yield
In neat (no solvent, solid phase) at 500℃; under 41254100 Torr; for 0.5h; Inert atmosphere;

Upstream product

• 7783-53-1 manganese(III) fluoride 
• 36781-15-4 terbium tetrafluoride 
• 7782-41-4 fluorine 
• 13773-81-4 krypton difluoride 
• 25467-96-3 {MnF₆}^(2-) 
• 7784-36-3 arsenic pentafluoride 
• 1313-13-9 manganese(IV) oxide 
• 7439-96-5 manganese 

Downstream Products

• 7783-53-1 manganese(III) fluoride 
• 7782-41-4 fluorine 
• 7664-39-3 hydrogen fluoride 
• 80937-33-3 oxygen 

Relevant articles and documents

The Crystal Structure of MnF3 Revisited

We correct the crystal structure of MnF3, of which the space group was reported as monoclinic C2/c (no. 15) with a = 8.9202, b = 5.0472, c = 13.4748 ?, β = 92.64°, V = 606.02 ?3, Z = 12, mS48, T not given, likely 298 K. In the structure model proposed here, we use a unit cell of one third of the former volume. The ruby red crystals of MnF3 were synthesized by a high-pressure/high-temperature method, where MnF4 was used as a starting material. As determined on a single crystal, MnF3 crystallizes in the monoclinic space group I2/a (no. 15) with a = 5.4964(11), b = 5.0084(10), c = 7.2411(14) ?, β = 93.00(3)°, V = 199.06(7) ?3, Z = 4, mS16, T = 183(2) K. The crystal structure of MnF3 is related by a direct group-subgroup transition to the VF3 structure-type. We performed quantum chemical calculations on the crystal structure to allow the assignment of bands of the obtained vibrational spectra.

Mass and FTIR spectroscopic investigations of gaseous manganese tetrafluoride

Knudsen effusion mass spectrometry has been applied to establish the optimum in situ conditions for the MnF4 synthesis. MnF4 has been generated in the gas phase over the MnF3(s)-TbF4(s) system at 650-780 K in the Knudsen cell. Under the same conditions the supplying gas for the matrix isolation IR spectra was formed. The infrared spectrum of argon-isolated MnF4 molecules has been obtained for the first time. A Td symmetry is suggested for the MnF4 molecule.

Kinetics of Fluorination of Manganese Compounds with Fluorine Gas

The kinetics of fluorination of MnO2, MnF2, and KMnF3 powders by fluorine in nitrogen carrier gas at atmospheric pressure was studied by gravimetry. The kinetic equations of fluorination were deduced. MnO2 converts to MnF3 markedly more rapidly than MnF2. The volatile product (MnF4) forms above 780 K.