Triplet ground state derivative of aza- m -xylylene diradical with large singlet-triplet energy gap

Andrzej Rajca, Arnon Olankitwanit, Suchada Rajca

Research output: Contribution to journalArticle

49 Scopus citations


Organic molecules with a strong preference for triplet ground states, in which the triplet state is below the lowest singlet state by ≥10 kcal/mol, are typically short-lived and mostly detected as reactive intermediates. We now report a triplet ground state derivative of aza-m-xylylene diradical with a large singlet-triplet energy gap (ΔEST) of ∼10 kcal/mol, which is comparable to ΔEST for the well-known reactive intermediate m-xylylene diradical. The aminyl diradical persists in solution at room temperature on the time scale of minutes.

Original languageEnglish (US)
Pages (from-to)4750-4753
Number of pages4
JournalJournal of the American Chemical Society
Issue number13
StatePublished - Apr 6 2011


ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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