Lanthanum oxyfluoride

Lanthanum oxyfluoride

Identifiers
CAS Number	13825-07-5  Y
3D model (JSmol)	Interactive image
PubChem CID	160796944
InChI InChI=1S/FH.La.O/h1H;;/q;+3;-2/p-1 Key: SCOIOSQRNIQXDI-UHFFFAOYSA-M
SMILES [La+3].[O-2].[F-]
Properties
Chemical formula	LaOF
Molar mass	173.90 g/mol
Appearance	colorless crystals, white powder
Density	6.03 g/cm3
Related compounds
Related compounds	Yttrium oxyfluoride, thorium oxyfluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Lanthanum(III) oxyfluoride is an inorganic compound of lanthanum, fluorine, and oxygen with the chemical formula LaOF. ^{[1] [2]}

Synthesis

Several methods of synthesizing LaOF are known:

• Hydrolysis of lanthanum fluoride by superheated steam:

2LaF₃ + H₂O → LaOF + 2HF

• Decomposition of lanthanum fluoride semihydrate when heated in vacuum:

2LaF₃· 0.5H₂O → LaOF + LaF₃ + 2HF

• Reacting lanthanum oxide with lanthanum fluoride in vacuum:

La₂O₃ + LaF₃ → 3LaOF

Uses

The compound is used to produce thin films. ^{[3] [4]}

References

1. Jacob, Kallarackel T.; Saji, Viswanathan S.; Waseda, Yoshio (July 2006). "Lanthanum Oxyfluoride: Structure, Stability, and Ionic Conductivity" . International Journal of Applied Ceramic Technology. 3 (4): 312–321. doi:10.1111/j.1744-7402.2006.02086.x . Retrieved 21 March 2023.
2. Suresh, C.; Nagabhushana, H.; Darshan, G.P.; Basavaraj, R.B.; Daruka Prasad, B.; Sharma, S.C.; Sateesh, M.K.; Shabaaz Begum, J.P. (February 2018). "Lanthanum oxyfluoride nanostructures prepared by modified sonochemical method and their use in the fields of optoelectronics and biotechnology". Arabian Journal of Chemistry. 11 (2): 196–213. doi: 10.1016/j.arabjc.2017.03.006 .
3. Barreca, Davide; Gasparotto, Alberto; Maragno, Cinzia; Tondello, Eugenio (December 2004). "Nanocrystalline Lanthanum Oxyfluoride Thin Films by XPS" . Surface Science Spectra. 11 (1): 52–58. Bibcode:2004SurSS..11...52B. doi:10.1116/11.20050401 . Retrieved 21 March 2023.
4. Kawamura, Junichi (2007). Proceedings of the 1st International Discussion Meeting on Superionic Conductor Physics: Kyoto, Japan, 10-14 September 2003. World Scientific. p. 48. ISBN   978-981-270-690-4 . Retrieved 21 March 2023.