COORDINATION OF LANTHANIDES BY 2 POLYAMINO POLYCARBOXYLIC MACROCYCLES - FORMATION OF HIGHLY STABLE LANTHANIDE COMPLEXES
COORDINATION OF LANTHANIDES BY 2 POLYAMINO POLYCARBOXYLIC MACROCYCLES - FORMATION OF HIGHLY STABLE LANTHANIDE COMPLEXES
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DOI：
10.1021/ic00235a031
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发表时间：
1986-07-16
影响因子：
4.6
通讯作者：
MERCINY, E
中科院分区：
文献类型：
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作者：
LONCIN, MF;DESREUX, JF;MERCINY, E
结论EDTA-NO的Cu（II）、钒、Fe（III）、Mn（II）和Gd（III）配合物的冷冻溶液EPR谱中存在自旋-自旋分裂现象，EDTA-CH 2-NO和EDTA-NO的Cu（II）配合物的EPR谱差异较小，说明两种配合物中的自旋-自旋相互作用主要是偶极的。钒基、Ni（II）、Fe（III）、Mn（II）和Gd（III）的EDTA-NO和EDTA-CH 2-NO络合物的光谱中的巨大差异表明，EDTA-NO络合物中存在对相互作用的实质性交换贡献，其在EDTA-CH 2-NO络合物中大大减弱。这项工作得到了NIH Grant GM 21156的部分支持。1984年，上证所感谢国家科学基金会为妇女提供访问专家职位。贝尔福德教授提供了一份他的四阶频移子程序的副本，以及有关其使用的有用评论。Dr. Dragutan（罗马尼亚）和Professor
Conclusions Resolved spin-spinsplitting was observed in the frozen-solution EPR spectra of the Cu (II), vanadyl, Fe (III), Mn (II), and Gd (III) complexes of EDTA-NO. The small differences between the spectra of the Cu (II) complexes of EDTA-CH2-NO and EDTA-NO indicated that the spin-spin interaction in both complexes was primarily dipolar. The large differences in the spectra of the EDTA-NO and EDTA-CH2-NO complexes of vanadyl, Ni (II), Fe (III), Mn (ll), and Gd (III) indicated that there was a substantial exchange contribution to the interaction in the EDTA-NO complexes that was greatly attenuated in the EDTA-CH2-NO complexes.Acknowledgment. This work was supported in part by NIH Grant GM21156. SSE thanks the NSF for a Visiting Pro-fessorship for Women, 1984. ProfessorBelford provided a copy of his fourth-order frequency shift subroutineand helpful com-ments concerning its use. Dr. Dragutan (Romania) and Professor