Solid-state photochemical generation of stable radical pairs from bis(aryloxy)phosphine azide precursors

被引：1

作者：

Lazarev, G ^{[1
]}

Pilbrow, JR

Kouskov, VL

Lahti, PM

Kalgutkar, R

机构：

[1] Monash Univ, Dept Phys, Clayton, Vic 3168, Australia

[2] Euroasmetall Int Co, Moscow, Russia

[3] Univ Massachusetts, Dept Chem, Amherst, MA 01003 USA

来源：

APPLIED MAGNETIC RESONANCE | 1998年 / 15卷 / 02期

关键词：

D O I：

10.1007/BF03161869

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Two types of radical pairs, stable at room temperature, were found in monocrystals of 2,6-di-tert-butyl-4-methylphenol doped with bis(2,6-di-tert-butyl-4-methoxyphenoxy) phosphine azide after photoirradiation using a Xe are lamp. One pair consists of two 2,6-di-tert-butyl-4-methoxyphenoxyls (RP1), the other of 2,6-di-tert-butyl-4-methoxyphenoxyl and 2,6-di-tert-butyl-4-methylphenoxyl (RP2), as indicated by their EPR hyperfine splitting. In the temperature range of 120-200 K RP1 accumulates 7 times faster than at 77 K. Explanations for this photoaccumulation as well as a mechanism of RP formation are proposed.

引用

页码：173 / 180

页数：8

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