High-frequency EPR study on Cu4Cu- and Co4Co-metallacrown complexes

High-frequency EPR study on Cu4Cu- and Co4Co-metallacrown complexes
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Cu4Cu-和Co4Co-金属冠配合物的高频EPR研究

DOI:
10.1016/j.jmmm.2019.01.038
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发表时间:
2019
影响因子:
2.7
通讯作者:
R. Klingeler
R. Klingeler
中科院分区:
材料科学3区
文献类型:
--
作者:
C. Koo;J. Park;J. Butscher;E. Rentschler;R. Klingeler

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采用高频/高场电子顺磁共振研究了两种同核12-MC-4金属冠状化合物Cu 4 Cu和Co 4 Co。对于Cu 4 Cu,我们的数据意味着轴向型g-各向异性,其中gx = 2.03 ± 0.01,gy = 2.04 ± 0.01,gz = 2.23 ± 0.01,得到g = 2.10 ± 0.02。没有观察到明显的基态模零场分裂。在Co4Co中,我们发现基态为mS = ± 3/2,g = 2.66.数据表明,各向异性D较大,符号为负值。
High-frequency/high-field electron paramagnetic resonance studies on two homonuclear 12-MC-4 metallacrown complexes Cu 4 Cu and Co 4 Co are presented. For Cu 4 Cu, our data imply axial-type g-anisotropy with g x= 2.03±0.01, g y= 2.04±0.01, and g z= 2.23±0.01, yielding g= 2.10±0.02. No significant zero field splitting (ZFS) of the ground state mode is observed. In Co 4 Co, we find a m S=±3/2 ground state with g= 2.66. The data suggest large anisotropy D of negative sign.
DOI: 10.1039/c1dt10028a
发表时间: 2011-05
影响因子: 4
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