BIS[3-TERT-BUTYL-5-(N-OXY-TERT-BUTYLAMINO)PHENYL] NITROXIDE IN A QUARTET GROUND-STATE - A PROTOTYPE FOR PERSISTENT HIGH-SPIN POLY[(OXYIMINO)-1,3-PHENYLENES]

被引：197

作者：

ISHIDA, T ^{[1
]}

IWAMURA, H ^{[1
]}

机构：

[1] UNIV TOKYO,FAC SCI,DEPT CHEM,7-3-1 HONGO,BUNKYO KU,TOKYO 113,JAPAN

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1991年 / 113卷 / 11期

关键词：

D O I：

10.1021/ja00011a028

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The title trinitroxide 4 was synthesized via the bis[m-(hydroxyamino)phenyl] nitroxides 9 and 10. The ESR spectra obtained in a toluene glass at 4.2 K was consistent with 4 in a quartet state with the zfs parameter \D\/hv of 0.0087 cm-1. The quartet state was shown to be the ground state by the magnetic measurement of its microcrystalline sample on a Faraday balance. The maximum of the effective moment was 3.53-mu-B at ca. 140 K. The Weiss constant and the energy gap between the lowest excited doublet and the ground quartet states were estimated to be -19 and +240 K, repsectively.

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页码：4238 / 4241

页数：4

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