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A Molecular Pair of [GdNi 3 ] Tetrahedra Bridged by Water Molecules
Author(s) -
Hosoi Ayako,
Yukawa Yasuhiko,
Igarashi Satoshi,
Teat Simon J.,
Roubeau Olivier,
Evangelisti Marco,
Cremades Eduard,
Ruiz Eliseo,
Barrios Leoní A.,
Aromí Guillem
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201100769
Subject(s) - magnetic refrigeration , crystallography , tetrahedron , molecule , cluster (spacecraft) , ion , chemistry , physics , materials science , computer science , quantum mechanics , organic chemistry , magnetization , magnetic field , programming language
Water is the glue in bridging two [GdNi 3 ] heterometallic fragments to form the new molecular cluster [Et 4 N][Gd 2 Ni 6 (val) 12 (MeCN) 6 (H 2 O) 3 ][Gd(NO 3 ) 5 ](ClO 4 ) 5 ( 1 , val= valine anion, see figure), otherwise cemented by amino acid ligands. The shape of the complex cation of 1 resembles an ancient goblet, and its structure holds weak magnetic exchange pathways, as confirmed theoretically and experimentally; this confers the cluster ideal conditions to exhibit good magnetocaloric properties.