Carbon-13 hyperfine splittings in the electron paramagnetic resonance spectra of β-substituted ethyl radicals

Download
  1. Get@NRC: Carbon-13 hyperfine splittings in the electron paramagnetic resonance spectra of β-substituted ethyl radicals (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1021/j100544a014
AuthorSearch for: ; Search for:
TypeArticle
Journal titleThe Journal of Physical Chemistry
ISSN0022-3654
Volume80
Issue3
Pages275278; # of pages: 4
AbstractCarbon-13 α and β hfsc are reported for a number of 2-substituted ethyl, 2-substituted 1,1-di-tert-butylethyl, and 1,1,2,2-tetrasubstituted ethyl radicals. The 13Cβ hfsc are normally in the range 11-14 G and are not much affected by polar factors, by the conformation of the 2 substituent, or by distortion of the β carbon from tetrahedral geometry. The small 13Cβ hfsc's for Me3SiCH2Ċ(CMe3)2 (9.8 G) and for n-Bu3-SiCH2Ċ(CMe3)2 (9.5 G) are attributed to distortion of the a carbon from planarity due to steric factors. The exceptionally small 13Cβ hfsc for CF3OCH2Ċ(CMe3)2 (6.1 G) is attributed to a homoconjugative interaction between the oxygen and the radical center.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21276778
Export citationExport as RIS
Report a correctionReport a correction
Record identifier623267ee-2939-498b-a271-7abf0c352ac9
Record created2015-10-13
Record modified2017-03-23
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)