Unravelling the Complexities of Pseudocontact Shift Analysis in Lanthanide Coordination Complexes of Differing Symmetry

Unravelling the Complexities of Pseudocontact Shift Analysis in Lanthanide Coordination Complexes of Differing Symmetry
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揭示不同对称性的镧系配位配合物中赝接触位移分析的复杂性

DOI:
10.1002/ange.201906031
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Harnden A
Harnden A
中科院分区:
--
文献类型:
--
作者:
Harnden A

文献摘要

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在两个密切相关的八配位镧系元素配合物系列中,主导配体场参数的符号的切换以及磁化率张量的主要分量的符号、振幅和取向的显著变化(因为Ln 3+离子被置换)共同掩盖了NMR顺磁位移的适度变化,但在Yb EPR和Eu发射光谱中是明显的。
In two closely related series of eight‐coordinate lanthanide complexes, a switch in the sign of the dominant ligand field parameter and striking variations in the sign, amplitude and orientation of the main component of the magnetic susceptibility tensor as the Ln3+ion is permuted conspire to mask modest changes in NMR paramagnetic shifts, but are evident in Yb EPR and Eu emission spectra.