Pentacarbonylhydridorhenium

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ImageFile1 = Pentacarbonylhydridorhenium-3D-balls.png IUPACName = pentacarbonylhydridorhenium
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Section2 = Chembox Properties
Formula = ReH(CO)₅
MolarMass = 327.265 g/mol
Appearance = Colorless liquid
Density = 2.30 g/mL, liquid
MeltingPt = 12.5 °C
BoilingPt = 100 °C (decomposes)
Solubility = Insoluble
Section3 = Chembox Hazards
MainHazards = Flammable
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Pentacarbonylhydridorhenium is a chemical compound with the formula ReH(CO)₅. This colorless liquid is a weak acid and represents one of the most important derivatives of dirhenium decacarbonyl (Re₂(CO)₁₀). It is synthesized by treating a methanolic solution of bromopentacarbonylrhenium(I) (Re(CO)₅Br) with zinc and acetic acid.cite journal | author = Michael A. Urbancic, John R. Shapley | title = Pentacarbonylhydridorhenium | journal = Inorganic Syntheses | volume = 28 | pages = 165–8 | year = 1990 | doi = ] : Re(CO)₅Br + Zn + HO₂CCH₃ → ReH(CO)₅ + ZnBrO₂CCH₃)

It is moderately sensitive to light: samples turn yellow due to the formation of the metal cluster Re₃H(CO)₁₄: 3 Re(CO)₅H → Re₃H(CO)₁₄ + H₂ + CO

At 100 °C, it decomposes to Re₂(CO)₁₀:: 2 Re(CO)₅H → H₂ + Re₂(CO)₁₀

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