title: Field-Induced Slow Magnetic Relaxation of GdIIIComplex with a Pt-Gd Heterometallic Bond.
abstract: Heterometallic Gd-Pt complexes ([Gd2Pt3(H2O)2(SAc)12] (SAc=thioacetate), [Y1.4Gd0.6Pt3(H2O)2(SAc)12], and [Gd2Pt3(H2O)6(SAc)12]⋅7 H2O have been synthesized. The crystal structures and DFT calculations indicated a Gd-Pt heretometallic bond. Single-crystal ESR spectra determined the direction of magnetic anisotropy as direction of the Gd-Pt bond. In other words, the Gd-Pt bond dictates the direction of magnetic anisotropy. The heterometallic Gd-Pt bond lowers the symmetry of the Gd ion, splitting the Kramers doublet in a dc field. Thus, we observed clear field-induced slow magnetic relaxation of [Y1.4Gd0.6Pt3(H2O)2(SAc)12] up to 36 K. The relaxation process was determined to be a direct process.
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai, 980-8578, Japan.|WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577, Japan.
authors.forename: Takefumi
authors.identifier: http://orcid.org/0000-0003-3479-7890
authors.initials: T
authors.lastname: Yoshida
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai, 980-8578, Japan.|WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577, Japan.
authors.forename: Goulven
authors.initials: G
authors.lastname: Cosquer
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai, 980-8578, Japan.|WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577, Japan.
authors.forename: David Chukwuma
authors.initials: DC
authors.lastname: Izuogu
authors.affiliation: Department of Chemistry, Graduate School of Science, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8551, Japan.
authors.forename: Hiroyoshi
authors.initials: H
authors.lastname: Ohtsu
authors.affiliation: Department of Chemistry, Graduate School of Science, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8551, Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Kawano
authors.affiliation: Laboratory Louis Nèel, CNRS, BP 166, 38042, Grenoble Cedex 9, France.
authors.forename: Yanhua
authors.initials: Y
authors.lastname: Lan
authors.affiliation: Laboratory Louis Nèel, CNRS, BP 166, 38042, Grenoble Cedex 9, France.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wernsdorfer
authors.affiliation: Institute for Materials Research, Tohoku University, Sendai, Miyagi, 980-8577, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nojiri
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai, 980-8578, Japan.|WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577, Japan.
authors.forename: Brian K
authors.initials: BK
authors.lastname: Breedlove
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai, 980-8578, Japan.|WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai, 980-8577, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yamashita
keywords: gadolinium; heterometallic bond; magnetic properties; slow magnetic relaxation; thioacetate