Influence of the N-oxide group in biradicals of the imidazoline series on the intramolecular spin exchange over systems of conjugated bonds
作者:I. A. Grigor'ev、S. A. Dikanov、G. I. Shchukin、L. B. Volodarskii、Yu. D. Tsvetkov
DOI:10.1007/bf00746536
日期:——
Nitroxyl radicals were synthesized with a rigid system of conjugated bonds, containing both imidazoline and imidazoline oxide, as well as imidazoline and imidazoline oxide radical fragments. The EPR method was used to study the characteristic features of intramolecular electronic spin exchange in nitroxyl biradicals of the imidazoline series with a rigid system of conjugated multiple bonds. It was
硝酰基自由基是用刚性共轭键系统合成的,包含咪唑啉和咪唑啉氧化物,以及咪唑啉和咪唑啉氧化物自由基片段。EPR方法用于研究具有刚性共轭多重键系统的咪唑啉系列硝酰基双自由基分子内电子自旋交换的特征。结果表明,将 N-氧化物基团引入咪唑啉自由基片段会导致交换积分值显着增加(数十倍),表征共轭键系统上的电子自旋交换。