化学
电子顺磁共振
顺磁性
磁强计
放松(心理学)
钴
核磁共振
自旋(空气动力学)
化学物理
分析化学(期刊)
凝聚态物理
磁场
无机化学
物理
热力学
有机化学
心理学
社会心理学
量子力学
作者
Alexander A. Pavlov,Joscha Nehrkorn,Sergey V. Zubkevich,Matvey V. Fedin,K. Holldack,Alexander Schnegg,Valentin V. Novikov
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2020-07-16
卷期号:59 (15): 10746-10755
被引量:22
标识
DOI:10.1021/acs.inorgchem.0c01191
摘要
Herein, we combine for the first time SQUID magnetometry, cw-EPR, THz-EPR, and paramagnetic NMR spectroscopies to study the magnetic properties of a high-spin cobalt(II) heteroscorpionate complex. Complementary information provided by these methods allowed precise determination of the magnetic interaction parameters, thereby removing the ambiguity inherit to single-method studies. We systematically investigate the extent to which information about the magnetic interaction parameters can be deduced from reduced data sets. The detailed study revealed significant different magnetic properties in solid state and solution. To further exploit the information content of the solution NMR experimental results, we introduce the new concept of reduced paramagnetic shift. It allows for the determination of the magnetic axes and, subsequently, full NMR signal assignment. It is shown that even in complicated cases, in which common NMR analytics (integral intensities, relaxation factors, etc.) fail, it yields robust results.
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