Rubidium telluride
Identifiers
3D model (JSmol)
ECHA InfoCard 100.032.159
EC Number
  • 235-388-2
  • InChI=1S/2Rb.Te
  • [Rb][Te][Rb]
Properties
Rb2Te
Molar mass 298.54 g/mol
Appearance yellow-green powder
Melting point 775 °C (1,427 °F; 1,048 K)
Related compounds
Other anions
 Rubidium oxide
Rubidium sulfide
Rubidium selenide
Rubidium polonide
Other cations
 Lithium telluride
Sodium telluride
Potassium telluride
Caesium telluride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Rubidium telluride is the inorganic compound with the formula Rb2Te. It is a yellow-green powder that melts at either 775 °C or 880 °C (two different values have been reported). It is an obscure material of minor academic interest.[1]

Like other alkali metal chalcogenides, Rb2Te is prepared from the elements in liquid ammonia.[2]

Rubidium telluride is used in some space-based UV detectors.

The compound has several polymorphs. At room temperature, ω-Rb2Te is a metastable antiflourite type structure, and transforms to α-Rb2Te upon heating, which is a PbCl2 type structure.[3]

References

  1. ↑ Stöwe, K.; Appel, S. (2002). "Polymorphic Forms of Rubidium Telluride Rb2Te". Angewandte Chemie International Edition. 41 (15): 2725–30. doi:10.1002/1521-3773(20020802)41:15<2725::AID-ANIE2725>3.0.CO;2-G. PMID 12203467.
  2. ↑ Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1.
  3. ↑ Alay-e-Abbas, S.M.; Shaukat, A. (2011). "First principles study of structural, electronic and optical properties of polymorphic forms of Rb2Te". Solid State Sciences. Elsevier BV. 13 (5): 1052–1059. doi:10.1016/j.solidstatesciences.2011.01.021. ISSN 1293-2558.
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