metallocene
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thumb|150px|General chemical structure of a metallocene compound, where M is a metal cation A metallocene is a compound typically consisting of two cyclopentadienyl anions (, abbreviated Cp) bound to a metal center (M) in the oxidation state II, with the resulting general formula Closely related to the metallocenes are the metallocene derivatives, e.g. titanocene dichloride or vanadocene dichloride. Certain metallocenes and their derivatives exhibit catalytic properties, although metallocenes are rarely used industrially. Cationic group 4 metallocene derivatives related to [Cp2ZrCH3]+ catalyze
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- Metallocenes
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Article
20 sectionsContents
- History
- Definition
- Classification
- Synthesis
- Using a metal salt and cyclopentadienyl reagents
- Using a metal and cyclopentadiene
- Using cyclopentadienyl reagents
- Structure
- Spectroscopic properties
- Vibrational (infrared and Raman) spectroscopy of metallocenes
- NMR (<sup>1</sup>H and <sup>13</sup>C) [[spectroscopy]] of metallocenes
- Mass spectrometry of metallocenes
- Derivatives
- Metallocenophanes
- Polynuclear and heterobimetallic metallocenes
- Multi-decker sandwich compounds
- Metallocenium ions
- See also
- References
- Additional references
thumb|150px|General chemical structure of a metallocene compound, where M is a metal cation A metallocene is a compound typically consisting of two cyclopentadienyl anions (, abbreviated Cp) bound to a metal center (M) in the oxidation state II, with the resulting general formula Closely related to the metallocenes are the metallocene derivatives, e.g. titanocene dichloride or vanadocene dichloride. Certain metallocenes and their derivatives exhibit catalytic properties, although metallocenes are rarely used industrially. Cationic group 4 metallocene derivatives related to [Cp2ZrCH3]+ catalyze olefin polymerization.
Some metallocenes consist of metal plus two cyclooctatetraenide anions (, abbreviated cot2−), namely the lanthanocenes and the actinocenes (uranocene and others).