Pentacarbonylhydridorhenium is a chemical compound

Chemical compound

A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. Chemical compounds have a unique and defined chemical structure; they consist of a fixed ratio of atoms that are held together...

 with the formula

Chemical formula

A chemical formula or molecular formula is a way of expressing information about the atoms that constitute a particular chemical compound....

 ReH(CO)₅. This colorless liquid is a weak acid and represents one of the most important derivatives of dirhenium decacarbonyl

Dirhenium decacarbonyl

Dirhenium decacarbonyl is an inorganic compound with the formula Re210. Commercially available, it is used as a starting point for the synthesis of many rhenium carbonyl complexes. It was first reported in 1941 by Walter Hieber who prepared it by carbonylation of Re2O7. The compound consists of a...

 (Re₂(CO)₁₀). It is synthesized by treating a methanol

Methanol

Methanol, also known as methyl alcohol, wood alcohol, wood naphtha or wood spirits, is a chemical with the formula CH3OH . It is the simplest alcohol, and is a light, volatile, colorless, flammable liquid with a distinctive odor very similar to, but slightly sweeter than, ethanol...

ic solution of bromopentacarbonylrhenium(I)

Bromopentacarbonylrhenium(I)

Bromopentacarbonylrhenium is an inorganic compound of rhenium, commonly used for the syntheses of other rhenium complexes.-Preparation:Bromopentacarbonylrhenium is commercially available...

 (Re(CO)₅Br) with zinc and acetic acid

Acetic acid

Acetic acid is an organic compound with the chemical formula CH3CO2H . It is a colourless liquid that when undiluted is also called glacial acetic acid. Acetic acid is the main component of vinegar , and has a distinctive sour taste and pungent smell...

 (HOAc).

Re(CO)₅Br + Zn + HOAc → ReH(CO)₅ + ZnBrOAc

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