Activation of Oxygen by Silicon

  • Author: ChemistryViews
  • Published: 06 June 2010
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
  • Source / Publisher: Nature Chem.
thumbnail image: Activation of Oxygen by Silicon

Silylenes could be attractive for facile dioxygen activation. In a first step dioxasilirane with a SiO2-peroxo ring is formed, which is a versatile oxo-transfer reagent. This SiO2-peroxo ring, however, was so far only generated in argon matrices at extremely low temperatures of –233 °C.


Matthias Drieß, professor for chemistry at the Technical University of Berlin, and his team now report the first synthesis and crystallographic characterization of dioxasiliranes at room temperature. The dioxasiliranes were stabilized by N-heterocyclic carbenes that feature a three-membered SiO2–peroxide ring.


Unexpectedly, these can undergo internal oxygen transfer in toluene solution at ambient temperature to give a unique complex of cyclic sila-urea with C=O → Si=O interaction and the shortest Si=O double-bond distance reported to date.


Article Views: 1577

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH