Holmium(III) selenide

Holmium(III) selenide
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 235-303-9
  • InChI=1S/2Ho.3Se/q2*+3;3*-2
    Key: XDJRCWPMKKSKGI-UHFFFAOYSA-N
  • [Se-2].[Se-2].[Se-2].[Ho+3].[Ho+3]
Properties
Ho2Se3
Molar mass 566.774 g·mol−1
Appearance brown[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Holmium(III) selenide is an inorganic compound with the chemical formula Ho2Se3.

Preparation

Holmium(III) selenide can be obtained from the reaction of holmium and selenium (in the presence of iodine):[2]

2 Ho + 3 Se → Ho2Se3

It can also be prepared by reacting holmium oxide and hydrogen selenide at high temperature.[3]

Ho2O3 + 3 H2Se → Ho2Se3 + 3 H2O

Properties

Holmium(III) selenide can form orthorhombic AgHoSe2 in the binary system of silver selenide.[4]

References

  1. ^ 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. ^ M.A. Bespyatov, A.E. Musikhin, V.N. Naumov, L.N. Zelenina, T.P. Chusova, R.E. Nikolaev, N.G. Naumov (March 2018). "Low-temperature thermodynamic properties of holmium selenide (2:3)". The Journal of Chemical Thermodynamics. 118: 21–25. doi:10.1016/j.jct.2017.10.013. 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. ^ Julien-Pouzol, M.; Guittard, M. Crystallochemical study of the ternary silver-rare earth-sulfur or selenium compounds situated along the silver chalcogenide-lanthanide(III) chalcogenide binary systems. Annales de Chimie (Paris, France), 1973. 8 (2): 139-145. ISSN 0151-9107.