Rubidium telluride

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| verifiedrevid = 444033680

| Name = Rubidium telluride

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|Section1={{Chembox Identifiers

| CASNo_Ref = {{cascite|correct|??}}

| CASNo = 12210-70-7

| PubChem = 82970

| EINECS = 235-388-2

| InChI = 1S/2Rb.Te

| SMILES = [Rb][Te][Rb]

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|Section2={{Chembox Properties

| Formula = Rb₂Te

| Appearance = yellow-green powder

| MolarMass = 298.54 g/mol

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| MeltingPtC = 775

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| Section8 = {{Chembox Related

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| OtherAnions = Rubidium oxide
Rubidium sulfide
Rubidium selenide
Rubidium polonide

| OtherCations = Lithium telluride
Sodium telluride
Potassium telluride
Caesium telluride

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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.{{Cite journal | last1 = Stöwe | first1 = K. | last2 = Appel | first2 = S. | doi = 10.1002/1521-3773(20020802)41:15<2725::AID-ANIE2725>3.0.CO;2-G | title = Polymorphic Forms of Rubidium Telluride Rb2Te | journal = Angewandte Chemie International Edition | volume = 41 | issue = 15 | pages = 2725–30 | year = 2002 | pmid = 12203467}}

Like other alkali metal chalcogenides, Rb₂Te is prepared from the elements in liquid ammonia.Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1.

Rubidium telluride is used in some space-based UV detectors.{{citation needed|date=October 2012}}

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.{{cite journal | last=Alay-e-Abbas | first=S.M. | last2=Shaukat | first2=A. | title=First principles study of structural, electronic and optical properties of polymorphic forms of Rb2Te | journal=Solid State Sciences | publisher=Elsevier BV | volume=13 | issue=5 | year=2011 | issn=1293-2558 | doi=10.1016/j.solidstatesciences.2011.01.021 | pages=1052–1059}}