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arXiv 1209.6432physics.chem-phcond-mat.str-el
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过渡金属配合物中高低自旋态的交叉

Crossover of high and low spin states in transition metal complexes

Hannes Raebiger, Shuhei Fukutomi, Hiroshi Yasuhara

摘要:

配位场论是一种电子-电子相互作用的微扰理论,它解释了过渡金属配合物的高自旋态和低自旋态的稳定性。对五种钴配合物的第一性原理计算表明,两种状态的电子-电子相互作用能差(i)随配体核电荷的变化与总能量差呈相反的趋势,(ii)比总能量差大3 ~ 4个数量级.从化学键的角度对高、低自旋态的交叉给出了新的解释。

英文摘要:

The stability of high vs. low spin states of transition metal complexes has been interpreted by ligand field theory, which is a perturbation theory of the electron-electron interaction. The present first principles calculation of a series of five cobalt complexes shows that the electron-electron interaction energy difference between the two states (i) exhibits the opposite trend to the total energy difference as the ligand nuclear charge varies, and (ii) is three or four orders of magnitude greater than the total energy difference. A new interpretation of the crossover of high and low spin states is given in terms of the chemical bonding.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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