Synthesis and magnetic properties of new mono- and binuclear iron complexes with salicyloylhydrazono dithiolane ligand.
We report here experimental evidence for the formation in the solid state of a new binuclear Fe (III) 2(mu-OMe) 2(HL) 4 complex (H 2L is 2-salicyloylhydrazono-1,3-dithiolane). The isostructural Mn (III) 2(mu-OMe) 2(HL) 4 complex has provided the strongest ferromagnetic interaction value (J approximately 20 cm (-1)) between Mn (III) ions to date. The new iron binuclear compound presented in this study shows antiferromagnetic intramolecular coupling, which agrees with the theoretical study that we previously proposed. During our synthetic work, we also observed an unexpected spontaneous reduction of the new Fe (III)(HL) 2Cl,S complex to the new Fe (II)(H 2L) 2Cl 2 high-spin mononuclear complex. This process has been checked by cyclo-voltammetry as well as pseudosteady voltammetry.
Bouslimani
Nouri
N
Laboratoire DECOMET, UMR 7177 CNRS, Universite Louis Pasteur, 4, rue Blaise Pascal, 67070 Strasbourg Cedex, France.
Clément
Nicolas
N
Rogez
Guillaume
G
Turek
Philippe
P
Bernard
Maxime
M
Dagorne
Samuel
S
Martel
David
D
Cong
Hoan Nguyen
HN
Welter
Richard
R