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我们注意到N—苯基—β—萘胺和五氯化锑在氯仿中反应,生成一紫黑色的顺磁性固休,从该顺磁性物质所得到的电子自旋共报讯号具有线宽6.07高斯,g值为2.0179,该顺磁性物质在实验室条件下十分稳定,长期放置讯号不消失,唯热熔后波谱对称性较差。参考有关文献资料,可以推断,该紫黑色的顺磁物质可能是N—苯基—β—萘胺向五氯化锑转移一个电子形成了一个正离子自由基,尚未发现该正离子自由基有超精细结构。这可能由于偶极一偶极相互作用以及未偶电子在共轭体系中非定域化引起的。 N—苯基—β—萘胺正离子自由基不能引发烯烃单体如甲基丙烯酸甲酯,丙烯酸甲脂及异戎二烯等的聚合,但对其有明显的阻聚性质。
We note that N-phenyl-β-naphthylamine and antimony pentachloride react in chloroform to form a magenta solid paramagnetic solid. The electron spin-echo signal obtained from the paramagnetic material has a linewidth 6.07 Gauss, g value of 2.0179, the paramagnetic material is very stable under laboratory conditions, long-term placed signal does not disappear, only the spectral symmetry after the hot melt less. Reference to the literature, it can be inferred that the purple black paramagnetic substance may be N-phenyl-β-naphthylamine to antimony pentachloride transfer of an electron to form a positive ion radical has not been found that the positive ion radical Ultra-fine structure. This may be due to the dipole-dipole interaction and the non-dipole electrons are not localized in the conjugated system. N-Phenyl-β-naphthylamine amine free radical can not lead to the polymerization of olefin monomer such as methyl methacrylate, methyl acrylate and isoroprene, but it has obvious blocking properties.