title: Strongest exchange coupling in gadolinium(III) and nitroxide coordination compounds.
abstract: 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.
authors.affiliation: Department of Engineering Science, The University of Electro-Communications , Chofu, Tokyo 182-8585, Japan.
authors.forename: Takuya
authors.initials: T
authors.lastname: Kanetomo
authors.forename: Takayuki
authors.initials: T
authors.lastname: Ishida