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 language | English |
|---|---|
| Pages (from-to) | 6007-6010 |
| Number of pages | 4 |
| Journal | Tetrahedron Letters |
| Volume | 38 |
| Issue number | 34 |
| DOIs | |
| Publication status | Published - 1997 Aug 1 |
ASJC Scopus subject areas
- Biochemistry
- Drug Discovery
- Organic Chemistry
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Okada, K., Matsumoto, K., Masaji, O., Akiyama, K., & Ikegami, Y. (1997). 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. Tetrahedron Letters, 38(34), 6007-6010. https://doi.org/10.1016/S0040-4039(97)01335-X