Pentacarbonylhydridorhenium
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| Pentacarbonylhydridorhenium | |
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| IUPAC name | pentacarbonylhydridorhenium |
| Properties | |
| Molecular formula | ReH(CO)5 |
| Molar mass | 327.265 g/mol |
| Appearance | Colorless liquid |
| Density | 2.30 g/mL, liquid |
| Melting point |
12.5 °C |
| Boiling point |
100 °C (decomposes) |
| Solubility in water | Insoluble |
| Hazards | |
| Main hazards | Flammable |
| 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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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. [1]
- 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 [1]
[edit] References
- ^ a b Michael A. Urbancic, John R. Shapley (1990). "Pentacarbonylhydridorhenium". Inorganic Syntheses 28: 165–8.
