Neodymium oxyfluoride

Neodymium oxyfluoride  Names

IUPAC name

fluoro hypofluorite;neodymium

Other names

Neodymium oxide fluoride

Identifiers

CAS Number

* 13816-43-8 Y

3D model (JSmol)

* Interactive image

InChI

* InChI=1S/FH.Nd.O/h1H;;/q;+3;-2/p-1

Key: FXNFEPRSIMVHIW-UHFFFAOYSA-M

SMILES

* [F-].[O-2].[Nd+3]

Properties

Chemical formula

| NdOF
Molar mass | 179.239 g/mol
Appearance  | Violet powder

Solubility in water

| Insoluble
Structure

Crystal structure

| cubic, rhombohedral, tetragonal

Space group

| P4/nmm
Related compounds

Related compounds

* Praseodymium oxyfluoride
* Lanthanum oxyfluoride
* Samarium oxyfluoride

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

Infobox references

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Neodymium oxyfluoride or neodymium oxide fluoride is an inorganic compound of neodymium, oxygen, and fluorine with the chemical formula NdOF.[1]

## Contents

* 1 Synthesis
* 2 Physical properties
* 3 Uses
* 4 References

## Synthesis

NdOF can be synthesized by pressing a mixture of Nd

3 and NdF
3 at 6 MPa:[2]

3 \+ NdF
3 → 3NdOF

## Physical properties

Neodymium oxyfluoride exhibits three distinct crystal structures, all based on the cubic fluorite arrangement. Among these, two correspond to the stoichiometric compound NdOF: cubic and rhombohedral. The third structure, which is tetragonal, emerges under conditions of fluorine excess relative to NdOF and exists over a range of compositions.[3]

## Uses

Neodymium oxyfluoride has attracted significant interest in the areas of anionic solid electrolytes, luminescent materials, catalysis, and magnetic materials due to its unique structure, which combines the beneficial properties of rare-earth cations with fluoride (F⁻) and oxide (O²⁻) anions.[4]

## References

1. ↑ "Neodymium Oxyfluoride | CAS 13816-43-8 | NdOF | AMERICAN ELEMENTS ®" (in en). American Elements. https://www.americanelements.com/neodymium-oxyfluoride-13816-43-8.
2. ↑ Takeda, Osamu; Nakano, Kiyotaka; Kobayashi, Fumiyoshi; Lu, Xin; Sato, Yuzuru; Zhu, Hogmin (1 December 2022). "Solubilities of RE2O3 in REF3-LiF" (in en). Journal of Sustainable Metallurgy 8 (4): 1498–1508. doi:10.1007/s40831-022-00617-6. ISSN 2199-3831. https://link.springer.com/article/10.1007/s40831-022-00617-6. Retrieved 5 July 2025.
3. ↑ Fergus, Jeffrey W. (1 November 1996). "Crystal chemistry of neodymium oxyfluoride". Materials Research Bulletin 31 (11): 1317–1323. doi:10.1016/0025-5408(96)00138-9. ISSN 0025-5408. https://www.sciencedirect.com/science/article/abs/pii/0025540896001389. Retrieved 5 July 2025.
4. ↑ Yang, Yusheng; Wang, Tuoyao; Zhao, Ran; Zhang, Shuyan; Zhao, Zengwu (1 December 2022). "Molten salt synthesis of neodynium oxyfluoride in various fluoride media with different fluoride ion activities". Journal of Rare Earths 40 (12): 1935–1944. doi:10.1016/j.jre.2022.01.018. ISSN 1002-0721. Bibcode: 2022JREar..40.1935Y. https://www.sciencedirect.com/science/article/abs/pii/S1002072122000266. Retrieved 5 July 2025.

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Neodymium compounds

* NdAl3(BO3)4
* NdBr3
* NdCl3
* NdF3
* Nd(OH)3
* NdNiO3
* NdN
* Nd(NO3)3
* Nd2O3
* Nd2(SO4)3

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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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