Dimethylsilyl- and methylene-bridged aromatic groups : III. Electron spin resonance spectra of anion radicals

From the ESR spectra of anion radicals of bis(4-biphenylyl)dimethylsilane and 4,4′-bis(4-biphenylyldimethylsilyl)biphenyl, the delocalization of spin density is inferred. The bridging SiMe 2-groups separate practically independent π-systems. The rate of electron transfer between biphenyl sub-units...

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Published inJournal of organometallic chemistry Vol. 49; no. 2; pp. 373 - 379
Main Authors Correa-Duran, Fernando, Allred, A.L., J. Loyd, Robert
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.03.1973
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Summary:From the ESR spectra of anion radicals of bis(4-biphenylyl)dimethylsilane and 4,4′-bis(4-biphenylyldimethylsilyl)biphenyl, the delocalization of spin density is inferred. The bridging SiMe 2-groups separate practically independent π-systems. The rate of electron transfer between biphenyl sub-units is less than ∼ 10 6 sec −1 at 223 K.
ISSN:0022-328X
1872-8561
DOI:10.1016/S0022-328X(00)84227-8