3,4′-bis[bis(t-butyl- and methoxy-phenyl)amino]stilbene bis(cation radical)s and their electrochemical and magnetic properties

被引：16

作者：

Michinobu, T ^{[1
]}

Tsuchida, E ^{[1
]}

Nishide, H ^{[1
]}

机构：

[1] Waseda Univ, Dept Polymer Chem, Tokyo 1698555, Japan

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2000年 / 73卷 / 04期

关键词：

D O I：

10.1246/bcsj.73.1021

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

3,3'-Bis[bis(p-t-butylphenyl)amino]stilbene 1a and 3,4'-bis[bis(p-methoxyphenyl)amino]stilbene 1b were synthesized. The oxidation of 1 was analyzed by electrochemical measurements, which revealed the reversible formation of the bis(cation radical) 2 via a two-electron transfer reaction. The chemical oxidation of 1 with NOBF4 also gave the bis(cation radical) 2; UV/vis and ESR spectroscopies supported aminium radical formation without any side reaction. Magnetization, magnetic susceptibility, and the ESR Delta M-s = +/-2 signal of the biradicals indicated tripler ground states with a large triplet-singlet energy gap.

引用

页码：1021 / 1027

页数：7