title: Magnetic anisotropy of a high-spin octanuclear nickel(II) complex with a meso-helicate core.
abstract: The octanickel(II) cluster 2b has been synthesized from the novel ferromagnetically coupled dinickel(II) metallacryptand 1b assembled from the m-phenylene-bis(oxamate) ligand. Complex 2b exhibits a dimer-of-tetramers structure, with two oxamate-bridged propeller-shaped tetranuclear units connected through three meta-substituted phenylenediamidate bridges, giving a metallacryptand core of the meso-helicate type. Complex 2b behaves as a ferromagnetically coupled dimer of two S=2 Ni(II)4 units with appreciable magnetic anisotropy.
authors.affiliation: Departament de Química Inorgànica, ICMOL, Universitat de València, 46100 Burjassot, València, Spain.
authors.forename: Emilio
authors.initials: E
authors.lastname: Pardo
authors.forename: Isidoro
authors.initials: I
authors.lastname: Morales-Osorio
authors.forename: Miguel
authors.initials: M
authors.lastname: Julve
authors.forename: Francesc
authors.initials: F
authors.lastname: Lloret
authors.forename: Joan
authors.initials: J
authors.lastname: Cano
authors.forename: Rafael
authors.initials: R
authors.lastname: Ruiz-García
authors.forename: Jorge
authors.initials: J
authors.lastname: Pasán
authors.forename: Catalina
authors.initials: C
authors.lastname: Ruiz-Pérez
authors.forename: Xavier
authors.initials: X
authors.lastname: Ottenwaelder
authors.forename: Yves
authors.initials: Y
authors.lastname: Journaux