Weak ferromagnetic ordering of the li+[tcne]•- (tcne = tetracyanoethylene) organic magnet with an interpenetrating diamondoid structure

Jae Hyuk Her, Peter W. Stephens, Royce A. Davidson, Kil Sik Min, Joshua D. Bagnato, Kipp Van Schooten, Christoph Boehme, Joel S. Miller

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29 Scopus citations

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.

Original languageEnglish
Pages (from-to)18060-18063
Number of pages4
JournalJournal of the American Chemical Society
Volume135
Issue number48
DOIs
StatePublished - 4 Dec 2013

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