Ferromagnetism and chirality in two-dimensional cyanide-bridged bimetallic compounds.
The combination of hexacyanoferrate(III) anions, [Fe(CN)(6)](3)(-), with nickel(II) complexes derived from the chiral ligand trans-cyclohexane-1,2-diamine (trans-chxn) affords the enantiopure layered compounds [Ni(trans-(1S,2S)-chxn)(2)](3)[Fe(CN)(6)](2).2H(2)O (1) and [Ni(trans-(1R,2R)-chxn)(2)](3)[Fe(CN)(6)](2).2H(2)O (2). These chiral systems behave as ferromagnets (T(c) = 13.8 K) with a relatively high coercive field (H(c) = 0.17 T) at 2 K. They also exhibit an unusual magnetic behavior at low temperatures that has been attributed to the dynamics of the magnetic domains in the ordered phase.
Instituto de Ciencia Molecular, Universitat de València, Dr. Moliner 50, 46100 Burjassot, Spain. Eugenio.Coronado@uv.es
Eugenio
E
Coronado
Carlos J
CJ
Gómez-García
Alicia
A
Nuez
Francisco M
FM
Romero
Eduard
E
Rusanov
Helen
H
Stoeckli-Evans