Tris(cyclopentadienyl)cerium
Chemical compound
From Wikipedia, the free encyclopedia
Tris(cyclopentadienyl)cerium is a metal organic compound of cerium with the chemical formula Ce(C5H5)3. It and the other cyclopentadiene compounds of the lanthanide metals are different from the cyclopentadienyl complexes of general transition metals and is considered to be ionically bonded.[1]
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| Names | |
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| Other names
Cerium cyclopentadienide | |
| Identifiers | |
3D model (JSmol) |
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CompTox Dashboard (EPA) |
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| Properties | |
| Ce(C5H5)3 | |
| Molar mass | 335.401 |
| Appearance | orange-red solid[1] |
| Melting point | 435 °C (Decomposes slightly when melted) |
| Boiling point | 230 °C (10−3~10−4mmHg, sublimates) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
Tris(cyclopentadienyl)cerium can be obtained by reacting anhydrous cerium chloride and sodium cyclopentadienide in a tetrahydrofuran medium:[1]
- 3C5H5Na + CeCl3 → (C5H5)3Ce+ 3 NaCl
Chemical properties
Tris(cyclopentadienyl)cerium decomposes when exposed to water to produce cerium(III) hydroxide and cyclopentadiene.