Rubidium telluride

Rubidium telluride

Identifiers
CAS Number	12210-70-7^Y
3D model (JSmol)	Interactive image
ECHA InfoCard	100.032.159
EC Number	235-388-2
PubChem CID	82970
CompTox Dashboard (EPA)	DTXSID20894847
InChI InChI=1S/2Rb.Te
SMILES [Rb][Te][Rb]
Properties
Chemical formula	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). N verify (what is ^YN ?) 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.^{[citation needed]}

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. 13 (5). Elsevier BV: 1052–1059. doi:10.1016/j.solidstatesciences.2011.01.021. ISSN 1293-2558.

External links

• Sangster, J.; Pelton, A. D. (1997). "The Rb-Te (rubidium-tellurium) system". Journal of Phase Equilibria. 18 (4): 394. doi:10.1007/s11669-997-0068-9.
• "Rubidium compounds: dirubidium telluride". WebElements: the periodic table on the web. WebElements. Retrieved 17 November 2011.