title: Weak ferromagnetic ordering of the Li(+)[TCNE](•-) (TCNE = tetracyanoethylene) organic magnet with an interpenetrating diamondoid structure.
abstract: Li[TCNE] (TCNE = tetracyanoethylene) magnetically orders as a weak ferromagnet (canted antiferromagnet) below 21.0 ± 0.1 K, as observed from the bifurcation of the field-cooled and zero-field-cooled magnetizations, as well as remnant magnetization. The structure, determined ab initio from synchrotron X-ray powder diffraction data, consists of a planar μ4-[TCNE](•-) bound to four tetrahedral Li(+) ions. The structure consists of two interpenetrating diamondoid sublattices, with closest interlattice distances of 3.43 and 3.48 Å. At 5 K this magnetic state is characterized by a coercivity of ~30 Oe, a remnant magnetization of 10 emu·Oe/mol, and a canting angle of 0.5°.
authors.affiliation: Department of Chemistry, University of Utah , 315 South 1400 East, Salt Lake City, Utah 84112-0850, United States.
authors.forename: Jae-Hyuk
authors.initials: JH
authors.lastname: Her
authors.forename: Peter W
authors.initials: PW
authors.lastname: Stephens
authors.forename: Royce A
authors.initials: RA
authors.lastname: Davidson
authors.forename: Kil Sik
authors.initials: KS
authors.lastname: Min
authors.forename: Joshua D
authors.initials: JD
authors.lastname: Bagnato
authors.forename: Kipp
authors.initials: K
authors.lastname: van Schooten
authors.forename: Christoph
authors.initials: C
authors.lastname: Boehme
authors.forename: Joel S
authors.initials: JS
authors.lastname: Miller