电子磁共振现象首先由苏联的扎沃伊斯基在1944年发现,并成功地用在顺磁性物质的研究上,其后各国科学工作者相继地在各种不同领域内广泛引用了这一成就,迄今解决了不少问题。电子磁共振方法研究的对象是具有未偶电子的物质,例如(1)具有奇数个电子的原子如 H;(2)内电子壳层未被充满的离子如过渡元素的离子;(3)具有奇数个电子 The phenomenon of electron-magnetic resonance was first discovered by Zvoyeski in the Soviet Union in 1944 and was successfully used in the study of paramagnetic substances. Subsequently, scientists of various countries successively cited this success in various fields one after another So far, many problems have been solved. Electromagnetic resonance methods are studied for objects with non-dipolar electrons such as (1) atoms having an odd number of electrons such as H; (2) ions that are not filled with ions in the inner electron shell such as transition elements; (3) Odd number of electrons