Gd3+ complexes as potential spin labels for high field pulsed EPR distance measurements
Gd3+ complexes as potential spin labels for high field pulsed EPR distance measurements
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DOI：
10.1021/ja075544g
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发表时间：
2007-11-21
影响因子：
15
通讯作者：
Goldfarb, Daniella
中科院分区：
文献类型：
--
作者：
Raitsimring, Arnold M.;Gunanathan, Chidambaram;Goldfarb, Daniella
利用脉冲电子-电子双共振方法，在Ka波段和W波段测量了一种新型的双钆配合物中两个高自旋Gd ~（3+）离子间的距离.实验测得的距离为2.02 +/- 0.02 nm，并与密度泛函理论计算的Gd ~（3+）-Gd ~（3+）距离（2.2126 nm）进行了比较。
Pulse electron-electron double resonance distance measurements between two high spin Gd3+ ions in a novel bis-Gd3+ complex involving two pyridine-based gadolinium tetracarboxylate systems linked by a rigid aryl-alkyne unit were carried out at Ka- and W-band frequencies. The experimental distance found was 2.02 +/- 0.02 nm, and it was further compared with the Gd3+-Gd3+ distance (2.2126 nm) determined by density functional theory.