ESR OF THE CATIONIC TRIRADICAL OF 1,3,5-TRIS(DIPHENYLAMINO)BENZENE

被引：117

作者：

YOSHIZAWA, K

CHANO, A

ITO, A

TANAKA, K

YAMABE, T

FUJITA, H

YAMAUCHI, J

SHIRO, M

机构：

[1] KYOTO UNIV,FAC ENGN,DIV MOLEC ENGN,SAKYO KU,KYOTO 60601,JAPAN

[2] KYOTO UNIV,COLL LIBERAL ARTS & SCI,SAKYO KU,KYOTO 60601,JAPAN

[3] RIGAKU CORP,RES SECT,AKISHIMA,TOKYO 196,JAPAN

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1992年 / 114卷 / 15期

关键词：

D O I：

10.1021/ja00041a013

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The ESR spectrum of the cationic triradical of 1,3,5-tris(diphenylamino)benzene (TDAB) is discussed. The tricationic state of TDAB was observed by means of cyclic voltammetry. The orange cationic triradical was prepared by oxidation of TDAB with trifluoroacetic anhydride in the presence of tetra-n-butylammonium tetrafluoroborate in CH2Cl2. The ESR spectrum of the randomly oriented radicals in the CH2Cl2 glass agrees well with the theoretical prediction of a quartet (S = 3/2) spin state with a zero-field splitting parameter D' of 13.1 G (0.0012 cm-1). This is the first observation of a high-spin state of a cationic radical.

引用

页码：5994 / 5998

页数：5

共 33 条

[1] FERROMAGNETIC INTERMOLECULAR INTERACTIONS IN A SERIES OF ORGANIC MIXED-CRYSTALS OF GALVINOXYL RADICAL AND ITS PRECURSORY CLOSED SHELL COMPOUND [J].