title: Highly reduced double-decker single-molecule magnets exhibiting slow magnetic relaxation.
abstract: F64Pc2Ln (1Ln, Ln = Tb or Lu) represent the first halogenated phthalocyanine double-decker lanthanide complexes, and 1Tb exhibits single-molecule magnet properties as revealed by solid-state magnetometry. The fluorine substituents of the phthalocyanine rings have a dramatic effect on the redox properties of the F64Pc2Ln complexes, namely, a stabilization of their reduced states. Electrochemical and spectroelectrochemical measurements demonstrate that the 1Tb(-/2-) and 1Tb(2-/3-) couples exhibit redox reversibility and that the 1Tb(-), 1Tb(2-) and 1Tb(3-) species may be prepared by bulk electrolysis in acetone. Low-temperature MCD studies reveal for the first time magnetization hystereses for the super-reduced dianionic and trianionic states of Pc2Ln.
authors.affiliation: Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), 08193 Bellaterra, Spain.
authors.forename: Mathieu
authors.initials: M
authors.lastname: Gonidec
authors.forename: Itana
authors.initials: I
authors.lastname: Krivokapic
authors.forename: Jose
authors.initials: J
authors.lastname: Vidal-Gancedo
authors.forename: E Stephen
authors.initials: ES
authors.lastname: Davies
authors.forename: Jonathan
authors.initials: J
authors.lastname: McMaster
authors.forename: Sergiu M
authors.initials: SM
authors.lastname: Gorun
authors.forename: Jaume
authors.initials: J
authors.lastname: Veciana
mesh_terms: D055664:Electrochemical Techniques; D007211:Indoles / Q000737:chemistry*; D054833:Isoindoles; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D060328:Magnetic Phenomena; D059346:Magnets / Q000737:chemistry*; D008958:Models, Molecular; D010084:Oxidation-Reduction
chemical_list: D007211:Indoles; D054833:Isoindoles; D028581:Lanthanoid Series Elements; C013647:phthalocyanine