title: Novel Cr(III) dinuclear complexes supported by salicyloylhydrazono dithiolane and dithiane ligands: synthesis, stability, crystal structures and magnetic properties.
abstract: We hereby report the synthesis, crystal structures and magnetic characterizations of three novel Cr(III) complexes: a mononuclear Cr(III)(HL((1)))₃ species along with two dinuclear μ-methoxo Cr(III)₂(μ-OMe)₂(HL)₄ (H₂L((1)): 2-salicyloylhydrazono-1,3-dithiolane; H₂L((2)): 2-salicyloylhydrazono-1,3-dithiane). EPR studies indicate that both dinuclear complexes (2a and 2b) are stable in solution (CHCl₃). Both Cr(III) dinuclear complexes exhibit a strong antiferromagnetic coupling. DFT calculations performed for complex 2a are in agreement with a strong antiferromagnetic exchange interaction in these new dinuclear Cr(III) complexes.
authors.affiliation: Laboratoire DECOMET, UMR-CNRS 7177, Université de Strasbourg, 4, rue Blaise Pascal, 67070, Strasbourg Cedex, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Clément
authors.forename: Clément
authors.initials: C
authors.lastname: Toussaint
authors.forename: Guillaume
authors.initials: G
authors.lastname: Rogez
authors.forename: Claudia
authors.initials: C
authors.lastname: Loose
authors.forename: Jens
authors.initials: J
authors.lastname: Kortus
authors.forename: Lydia
authors.initials: L
authors.lastname: Brelot
authors.forename: Sylvie
authors.initials: S
authors.lastname: Choua
authors.forename: Samuel
authors.initials: S
authors.lastname: Dagorne
authors.forename: Philippe
authors.initials: P
authors.lastname: Turek
authors.forename: Richard
authors.initials: R
authors.lastname: Welter