Strongest Exchange Coupling in Gadolinium(III) and Nitroxide Coordination Compounds
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The largest antiferromagnetic coupling parameter was characterized to be 2J/kB = −15.9(2) K in [Gd(hfac)3(6bpyNO)], where 6bpyNO stands for 2,2′-bipyridin-6-yl tert-butyl nitroxide. This molecule was designed according to the empirical relation: more planar chelate favors stronger antiferromagnetic coupling. The Gd–Orad bond is relatively short owing to the tridentate character.
创建时间:
2016-02-16



