PHOTOCHEMICAL-REACTIONS OF GERMOXANES - GENERATION OF GERMYL AND GERMOXY RADICALS

被引：4

作者：

MOCHIDA, K ^{[1
]}

MORI, S ^{[1
]}

YOSHIZAWA, C ^{[1
]}

TOKURA, S ^{[1
]}

WAKASA, M ^{[1
]}

HAYASHI, H ^{[1
]}

机构：

[1] INST PHYS & CHEM RES,WAKO,SAITAMA 35101,JAPAN

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1994年 / 471卷 / 1-2期

关键词：

GERMANIUM; DIGERMOXANE; CYCLIC GERMOXANE; HOMOLYSIS; PHOTOCHEMISTRY;

D O I：

10.1016/0022-328X(94)88105-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Photochemical reactions of phenyl-substituted digermoxanes, (PhnMe3-nGe)2O (n = 1-3), and a cyclic germoxane, (Me2GeO)4, have been investigated by chemical trapping and laser flash-photolysis. On irradiation, phenylated digermoxanes undergo homolysis of the germanium-oxygen bond to give germyl radicals and germoxy radicals. In the presence of nonhalogenated solvents, these germyl radicals and germoxy radicals couple to yield digermanes and digermyl peroxides, respectively. In polyhalomethanes (CCl4, CHCl3, and BrCCl3), germyl radicals are converted to the corresponding halides by abstraction of a halogen atom. Germoxy radicals do not react with polyhalomethanes; they couple to produce digermyl peroxides which decompose to give either a pair of germoxy radicals or germyl radicals and germylperoxy radicals. Photolysis of a cyclic germoxane also results in cleavage of the germanium-oxygen bond.

引用

页码：47 / 52

页数：6

共 19 条

[1] REACTIONS OF ORGANOELEMENT PEROXIDES OF SILICON SUBGROUP WITH OLEFINS [J].