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Dirhenium decacarbonyl

Dirhenium decacarbonyl
Other names Rhenium carbonyl; rhenium pentacarbonyl
CAS number 14285-68-8
Molecular formula Re2(CO)10
Molar mass 652.52 g/mol
EU classification Harmful (Xn)
R-phrases R20
S-phrases S36
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Dirhenium dodecarbonyl is an inorganic compound with the formula Re2(CO)10. 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.[1] The compound consists of a pair of square pyramidal Re(CO)5 units joined via a Re-Re bond. Mn2(CO)10 and Tc2(CO)10 adopt the same structure.

Reaction with various halogens cleave the Re-Re bond:[2]

Re2(CO)10 + X2 → 2 Re(CO)5X (X = Cl, Br, I)

When bromine is used, bromopentacarbonylrhenium(I) is formed; it is itself an intermediate for many more rhenium complexes.


  1. ^ W. Hieber, H. Fuchs (1941). "Über Metallcarbonyle. XXXVIII. Über Rheniumpentacarbonyl" (in German). Zeitschrift für anorganische und allgemeine Chemie 248: 256-268. doi:10.1002/zaac.19412480304.
  2. ^ Steven P. Schmidt, William C. Trogler, Fred Basolo (1990). "Pentacarbonylrhenium Halides". Inorganic Syntheses 28: 154-159. doi:10.1002/9780470132593.ch42.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Dirhenium_decacarbonyl". A list of authors is available in Wikipedia.
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