Dynamic frequency shift in the E.S.R. spectra of transition metal ions
Dynamic frequency shift in the E.S.R. spectra of transition metal ions
复制标题
E.S.R 中的动态频移
DOI：
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发表时间：
1974
期刊：
影响因子：
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通讯作者：
Z. Luz
中科院分区：
文献类型：
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作者：
R. Poupko;A. Baram;Z. Luz
讨论了影响过渡金属配合物在溶液中电子自旋共振谱线形状和位移的因素。结果表明，对于S > 1/2的离子，动态频移可能对E.S.R.并给出了Cr ~（3+）、Fe ~（3+）和Gd ~（3+）配合物中这种效应的实验证据。根据二次零场分裂相互作用波动引起的弛豫机制，给出了这些谱的定量解释。
The factors which determine the electron spin resonance lineshapes and shifts of transition metal complexes in solution are discussed. It is shown that for ions with S > ½ the dynamic frequency shift may have pronounced effects on the E.S.R. lineshapes, and experimental evidence for this effect in complexes of Cr3+, Fe3+ and Gd3+ is presented. A quantitative interpretation of these spectra in terms of a relaxation mechanism due to fluctuation of the quadratic zero field splitting interaction is given.