Chemistry Letters p. 169 - 170 (1996)
Update date:2022-08-05
Topics:
Okada, Keiji
Ueda, Kazumasa
Oda, Masaji
Murai, Hisao
Akiyama, Kimio
Ikegami, Yusaku
4,4′-(Triptycene-1,8-diyl)bis(1-methyl-2,6-diphenylpyridinyl) diradical was prepared by 3%-Na-Hg reduction of the corresponding dication and the ground state was estimated to be triplet or singlet with small S-T energy gap (< 20 J mol-1). No triplet signal was observed under the similar conditions for the corresponding 1,5-diyl derivative.
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