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.
Coronado
Eugenio
E
Instituto de Ciencia Molecular, Universitat de València, Dr. Moliner 50, 46100 Burjassot, Spain. Eugenio.Coronado@uv.es
Gómez-García
Carlos J
CJ
Nuez
Alicia
A
Romero
Francisco M
FM
Rusanov
Eduard
E
Stoeckli-Evans
Helen
H