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

doi:10.1016/S0040-4039(97)01335-X

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

Division of Organic- and Biomaterials Research

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	6007-6010
Number of pages	4
Journal	Tetrahedron Letters
Volume	38
Issue number	34
DOIs	https://doi.org/10.1016/S0040-4039(97)01335-X
Publication status	Published - 1997 Aug 1

ASJC Scopus subject areas

Biochemistry
Drug Discovery
Organic Chemistry

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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.",

author = "Keiji Okada and Kouzou Matsumoto and Oda Masaji and Kimio Akiyama and Yusaku Ikegami",

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T1 - 1,1'-(p- or m-phenylene)bis(2,4,6-triphenylpyridinyl) diradicals

T2 - Ground state in a heteroatom-containing system in relation to the topology rule

AU - Okada, Keiji

AU - Matsumoto, Kouzou

AU - Masaji, Oda

AU - Akiyama, Kimio

AU - Ikegami, Yusaku

PY - 1997/8/1

Y1 - 1997/8/1

N2 - 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.

AB - 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.

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JO - Tetrahedron Letters

JF - Tetrahedron Letters

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