Modelling nucleophilic substitution at silicon using hypervalent silicon compounds based on di and tri halosilanes

The 29Si- and 13C-NMR spectral parameters of a range of N-(amidomethyl)-polyhalosilanes have been measured in solution and the extent of SiO bond formation and pentacoordination determined. The larger the number of electronegative groups attached to the silicon the greater the extent of pentacoordi...

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Bibliographic Details
Published inJournal of organometallic chemistry Vol. 606; no. 2; pp. 125 - 131
Main Authors Bassindale, Alan R., Borbaruah, Moheswar, Glynn, Simon J., Parker, David J., Taylor, Peter G.
Format Journal Article
LanguageEnglish
Published LAUSANNE Elsevier B.V 28.07.2000
Elsevier
Subjects
Chemistry
Chemistry, Inorganic & Nuclear
Chemistry, Organic
Dichloro
Difluoro
NMR
Pentacoordinate
Physical Sciences
Science & Technology
Silicon
Dichloro
NMR
Silicon
Pentacoordinate
Difluoro
silicon
pentacoordinate
dichloro
ENVIRONMENT
difluoro
CRYSTAL
ATOM
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Summary:The 29Si- and 13C-NMR spectral parameters of a range of N-(amidomethyl)-polyhalosilanes have been measured in solution and the extent of SiO bond formation and pentacoordination determined. The larger the number of electronegative groups attached to the silicon the greater the extent of pentacoordination achievable by the silicon. Thus with trichlorosilanes a ‘tight’ pentacoordinate silicon is observed where the SiO bond is almost fully formed.
ISSN:0022-328X
1872-8561
DOI:10.1016/S0022-328X(00)00263-1