Erbium(III) selenide

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Erbium(III) selenide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.494 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 234-657-1
PubChem CID
  • InChI=1S/2Er.3Se
    Key: SAJINCSOEUABRO-UHFFFAOYSA-N
  • [Se].[Se].[Se].[Er].[Er]
Properties
Er2Se3
Molar mass 571.431 g·mol−1
Appearancegreen-brown [1] or yellow crystals [2]
Density 6.83 g·cm−3 [1]
6.855 g·cm−3 [2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Erbium(III) selenide is an inorganic compound with a chemical formula of Er2Se3.

Contents

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. [3]

Er2O3 + 3 H2Se → Er2Se3 + 3 H2O

Properties

Erbium(III) selenide is an orthorhombic crystal with a Sc2S3 structure and a space group of Fddd. [2] It reacts with magnesium selenide at 1000 °C to obtain MgEr2Se4. [4]

References

  1. 1 2 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.
  2. 1 2 3 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)
  3. ↑ 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.
  4. ↑ 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

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