Dirhenium decacarbonyl
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| Dirhenium decacarbonyl | |
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| IUPAC name | bis(pentacarbonylrhenium)(Re—Re) |
| Other names | Rhenium carbonyl; rhenium pentacarbonyl |
| Identifiers | |
| CAS number | [14285-68-8] |
| Properties | |
| Molecular formula | Re2(CO)10 |
| Molar mass | 652.52 g/mol |
| Hazards | |
| 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 |
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Dirhenium decacarbonyl 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.
[edit] References
- ^ W. Hieber, H. Fuchs (1941). "Über Metallcarbonyle. XXXVIII. Über Rheniumpentacarbonyl" (in German). Zeitschrift für anorganische und allgemeine Chemie 248: 256–268. doi:.
- ^ Steven P. Schmidt, William C. Trogler, Fred Basolo (1990). "Pentacarbonylrhenium Halides". Inorganic Syntheses 28: 154–159. doi:.
