Neodymium tantalate

Neodymium tantalate

The structure of Neodymium tanatalate. Atoms are: O(red), Ta(blue) and Nd(green)
Identifiers
CAS Number	12344-26-2^Y
3D model (JSmol)	Interactive image
PubChem CID	157362626
InChI InChI=1S/Nd.4O.Ta/q+3;4*-2;+5 Key: BIUUBSDKMPQKED-UHFFFAOYSA-N
SMILES [O-2].[O-2].[O-2].[O-2].[Nd+3].[Ta+5]
Properties
Chemical formula	NdTaO4
Molar mass	389.19
Appearance	gray-purple solid[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Neodymium tantalate is an inorganic compound with the chemical formula NdTaO₄. It is prepared by reacting neodymium oxide and tantalum pentoxide at 1200 °C.^[1] It reacts with a mixture of tantalum pentoxide and chlorine gas at high temperature to obtain Nd₂Ta₂O₇Cl₂.^[2] It is ammonolyzed at high temperature to obtain oxynitrides of Nd-Ta.^[3]

Properties

Neodymium tantalate forms violet crystals of the monoclinic system, with space group I 2/a, cell parameters a = 0.55153 nm, b = 1.12388 nm, c = 0.51184 nm, β = 95.731°, Z = 4.^[4]

There is a metastable high-pressure phase of the monoclinic system, space group P 21/c, cell parameters a = 0.75920 nm, b = 0.54673 nm, c = 0.77022 nm, β = 100.032°, Z = 4.^[5]

Neodymium tantalate is insoluble in water.^{[citation needed]}

See also

• Neodymium
• Tantalum
• Tantalate

References

1. Krylov, E. I.; Strelina, M. M. Praseodymium and neodymium orthotantalates. Zhurnal Neorganicheskoi Khimii, 1961. 6: 235-235. ISSN 0044-457X.
2. U. Schaffrath, R. Gruehn (1988-12-01). "Nd7,33Ta8O28CI6 — ein Zwischenprodukt des thermischen Abbaus von Nd2Ta2O7Cl2: Präparation, Struktur und magnetische Eigenschaften / Nd_7,33Ta₈O₂₈Cl₆ — an Intermediate Product of the Thermal Decomposition of Nd2Ta2O7Cl2: Preparation, Crystal Structure and Magnetic Properties". Zeitschrift für Naturforschung B. 43 (12): 1567–1574. doi:10.1515/znb-1988-1208. ISSN 1865-7117. S2CID 98811409.
3. Pascal Maillard, Franck Tessier, Emmanuelle Orhan, François Cheviré, Roger Marchand (January 2005). "Thermal Ammonolysis Study of the Rare-Earth Tantalates RTaO 4". Chemistry of Materials. 17 (1): 152–156. doi:10.1021/cm040131p. ISSN 0897-4756. S2CID 95148003. Retrieved 2021-06-06.
4. Kaijie Ning, Qingli Zhang, Deming Zhang, Jintai Fan, Dunlu Sun, Xiaofei Wang, Yin Hang (2014). "Crystal growth, characterization of NdTaO₄: A new promising stoichiometric neodymium laser material". Journal of Crystal Growth. 388 (Journal of Crystal Growth ed.): 83–86. Bibcode:2014JCrGr.388...83N. doi:10.1016/j.jcrysgro.2013.10.030.
5. Titov Yu. A., Sych A. M., Sokolov A. N., Kapshuk A. A., Markiv V. Ya., Belyavina N. M. (2000). "Crystal structure of the high-pressure modification of NdTaO₄". 311 (2) (Journal of alloys and compounds ed.): 252–255. Archived from the original on 2014-08-12. {{cite journal}}: Cite journal requires |journal= (help)

External links

• Patrick N. Walsh, Harold W. Goldstein, David White (May 1960). "Vaporization of Rare-Earth Oxides". Journal of the American Ceramic Society. 43 (5): 229–233. doi:10.1111/j.1151-2916.1960.tb14589.x. ISSN 0002-7820. Retrieved 2021-06-06.