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A magnetic ionic liquid based on tetrachloroferrate exhibits three-dimensional magnetic ordering: A combined experimental and theoretical study of the magnetic interaction mechanism


Abstract: A new magnetic ionic liquid (MIL) with 3D antiferromagnetic ordering has been synthetized and characterized. The information obtained from magnetic characterization was supplemented by analysis of DFT calculations and the magneto-structural correlations. The result gives no evidence for direct iron-iron interactions, corroborating that the 3D magnetic ordering in MILs takes place via super-exchange coupling containing two diamagnetic atoms intermediaries. Liquid attraction: The crystal structure, DFT calculations and magnetic properties of a new magnetic ionic liquid (MIL), Dimim[FeCl 4], which displays 3 D magnetic ordering below 6 K, is presented. The study of its magnetostructural correlations points to the relative importance of two influential factors on the strength of the magnetic interaction of MILs: the spin population into the metal complex anion and the distances and angles between the superexchange pathways, type M-X-X-M (M=Metal and X=halide).

 Fuente: Chem. Eur. J. 2014, 20, 72 – 76

Editorial: Wiley-VCH Verlag

 Fecha de publicación: 01/01/2014

Nº de páginas: 3

Tipo de publicación: Artículo de Revista

DOI: 10.1002/chem.201303602

ISSN: 0947-6539,1521-3765

Proyecto español: MAT2011-27573-C04

Url de la publicación: http://onlinelibrary.wiley.com/doi/10.1002/chem.201303602/abstract

Autores/as

ABEL GARCIA SAIZ
MIGOWSKI, PEDRO
BLANCO, JESÚS ANGEL
FERNÁNDEZ-DÍAZ, MARÍA TERESA
RIUS, JORDI