Chemically induced dynamic electron polarization studies on photolysis of hexaphenyldisilane, -digermane and -distannane

I. S.M. Saiful, Yasunori Oba, K. Mochida, S. Yamauchi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

EPR signals of the triphenylsilyl and triphenylgermyl radicals were observed for the first time in fluid solution by direct photolysis of hexaphenyldisilane and hexaphenyldigermane. Observed electron spin polarization was interpreted in terms of a triplet mechanism (TM). Along with the main signal, the 29Si isotope signal was also observed and the polarization was tentatively explained by combination of a TM and a radical pair mechanism. An electron density on the silicon atom of the silyl radical was determined as 0.52 from the isotropic hyperfine coupling constant of 29Si. The triphenylstannyl radical was not observed with the time resolution (ca. 80 ns) of our system.

Original languageEnglish
Pages (from-to)1011-1014
Number of pages4
JournalPhysical Chemistry Chemical Physics
Volume3
Issue number6
DOIs
Publication statusPublished - 2001 Mar 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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