1,1'-(p- or m-phenylene)bis(2,4,6-triphenylpyridinyl) diradicals: Ground state in a heteroatom-containing system in relation to the topology rule

Keiji Okada, Kouzou Matsumoto, Oda Masaji, Kimio Akiyama, Yusaku Ikegami

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

1,1'-(p or m-Phenylene)bis(2,4,6-triphenylpyridinyl) diradical were prepared by the reduction of the corresponding dications. The plots of the ESR signal intensity vs. 1/T show that both the p- and m-diradicals are singlet in the ground state with a singlet-triplet energy gap of 51 cal/mol for the p-isorna and 44 cal/mol for the m-isomer.

Original languageEnglish
Pages (from-to)6007-6010
Number of pages4
JournalTetrahedron Letters
Volume38
Issue number34
DOIs
Publication statusPublished - 1997 Aug 1

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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