Aluminoxane

Octa-aluminoxane (R = tert-Bu).

Aluminoxanes are organoaluminium compounds with the formula [RAlO]m[R2AlO0.5]n[R2AlOH]o, where R is an organic substituent. The following structural rules apply: Al is tetrahedral and O is three-coordinate.[1][2]

Methylaluminoxane is widely used in the polymerization of alkenes. These compounds are typically obtained by the partial hydrolysis of trialkylaluminium compounds. Aluminoxanes serve as activators for catalytic olefin polymerisation, such as the Ziegler–Natta catalyst. They also serve a function as scavenger for impurities (e.g. water) in reactions that are sensitive to these impurities. Aluminoxane, appearing as white solids, are encountered as solutions.

Aluminoxane with OH groups (R = tert-Bu).

References

  1. ^ Harlan, C. Jeff; Mason, Mark R.; Barron, Andrew R. (1994). "Tert-Butylaluminum Hydroxides and Oxides: Structural Relationship between Alkylalumoxanes and Alumina Gels". Organometallics. 13 (8): 2957–2969. doi:10.1021/om00020a011.
  2. ^ Mason, Mark R.; Smith, Janna M.; Bott, Simon G.; Barron, Andrew R. (1993). "Hydrolysis of tri-tert-Butylaluminum: The First Structural Characterization of Alkylalumoxanes [(R2Al)2O]n and (RAlO)n". Journal of the American Chemical Society. 115 (12): 4971–4984. doi:10.1021/ja00065a005.


Stub icon

This article about an organic compound is a stub. You can help Wikipedia by adding missing information.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.