Disupersilylperoxo Radical Anion [tBu3SiOOSitBu3]⋅−: An Intermediate of Supersilanide Oxidation

In the oxidative process of the supersilanide anion [SitBu3]−, radical species are generated. The continuous wave (cw)‐EPR spectrum of the reaction solution of Na[SitBu3] with O2 revealed a signal, which could be characterized as disupersilylperoxo radical anion [tBu3SiOOSitBu3]⋅− affected by sodium...

Full description

Saved in:
Bibliographic Details
Published in:Chemistry : a European journal 2014-08, Vol.20 (33), p.10236-10239
Main Authors: Budanow, Alexandra, Haeri, Haleh Hashemi, Sänger, Inge, Schödel, Frauke, Bolte, Michael, Prisner, Thomas, Wagner, Matthias, Lerner, Hans-Wolfram
Format: Article
Language:English
Subjects:
Chemistry
density functional calculations
EPR spectroscopy
Oxidation
oxygen
silyl anions
X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the oxidative process of the supersilanide anion [SitBu3]−, radical species are generated. The continuous wave (cw)‐EPR spectrum of the reaction solution of Na[SitBu3] with O2 revealed a signal, which could be characterized as disupersilylperoxo radical anion [tBu3SiOOSitBu3]⋅− affected by sodium ions though ion‐pair formation. A mechanism is suggested for the oxidative process of supersilanide, which in a further step can be helpful in a better understanding of the oxidation process of isoelectronic phosphanes. The oxidative process of the supersilanide anion [SitBu3]− was monitored by EPR spectroscopy. The continuous wave (cw)‐EPR spectrum of the reaction solution of Na[SitBu3] and O2 revealed a signal, which could be characterized as the disupersilylperoxo radical anion [tBu3SiOOSitBu3]⋅− affected by sodium ions through ion‐pair formation (see scheme).
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201403854