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| CAS Number | |
| 3D model (JSmol) | |
| ECHA InfoCard | 100.031.494 
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| Properties | |
| Chemical formula | Er2Se3 |
| Molar mass | 571.431 g·mol |
| Appearance | green-brown or yellow crystals |
| Density | 6.83 g·cm 6.855 g·cm |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references | |
Erbium(III) selenide is an inorganic compound with a chemical formula of Er2Se3.
Preparation
Erbium(III) selenide can be obtained by the reaction of erbium and selenium:
- 2 Er + 3 Se → Er2Se3
It can also be prepared by reacting erbium oxide and hydrogen selenide at high temperature.
- Er2O3 + 3 H2Se → Er2Se3 + 3 H2O
Properties
Erbium(III) selenide is an orthorhombic crystal with a Sc2S3 structure and a space group of Fddd. It reacts with magnesium selenide at 1000 °C to obtain MgEr2Se4.
References
- ^ K.-J. Range, Ch. Eglmeier (August 1991). "Crystal data for rare earth sesquiselenides Ln2Se3 (Ln ≡ Ho, Er, Tm, Yb, Lu) and structure refinement of Er2Se3". Journal of the Less Common Metals. 171 (1): L27–L30. doi:10.1016/0022-5088(91)90254-2. Retrieved 2023-06-13.
- ^ C.M. Fang, A. Meetsma, G.A. Wiegers (March 1995). "Crystal structure of erbium sesquiselenide, Er2Se3". Journal of Alloys and Compounds. 218 (2): 224–227. doi:10.1016/0925-8388(94)01394-2. Retrieved 2023-06-13.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - Guittard, Micheline; Benacerraf, A.; Flahaut, J. Selenides L2Se3 and L2Se4 of rare earth elements. Ann. Chim. (Paris), 1964. 9 (1-2): 25-34. CAN61: 38017.
- D. Reig-i-Plessis, S. V. Geldern, A. A. Aczel, D. Kochkov, B. K. Clark, G. J. MacDougall (2019-04-26). "Deviation from the dipole-ice model in the spinel spin-ice candidate MgEr 2 Se 4". Physical Review B. 99 (13): 134438. arXiv:1703.04267. Bibcode:2019PhRvB..99m4438R. doi:10.1103/PhysRevB.99.134438. ISSN 2469-9950. S2CID 119502480. Retrieved 2023-06-13.
{{cite journal}}: CS1 maint: multiple names: authors list (link)
External reading
- Anna Kornienko, J. H. Melman, G. Hall, T. J. Emge, John G. Brennan (2002-01-01). "Chalcogen Rich Lanthanide Clusters from Halide Starting Materials (II): Selenido Compounds". Inorganic Chemistry. 41 (1): 121–126. doi:10.1021/ic010740o. ISSN 0020-1669. PMID 11782150. Retrieved 2023-06-13.
{{cite journal}}: CS1 maint: multiple names: authors list (link)
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