title: Slow relaxation of the magnetization of an Mn(III) single ion.
abstract: A Mn(III)-salen-type complex with a diamagnetic [Co(III)(CN)6](3-) moiety, [Mn(III)(5-TMAM(R)-salmen)(H2O)Co(III)(CN)6]·7H2O·MeCN [1; 5-TMAM(R)-salmen = (R)-N,N'-(1-methylethylene)bis(5-trimethylammoniomethylsalicylideneiminate], was prepared. From direct-current magnetic susceptibilities, magnetization, and high-field and multifrequency electronic spin resonance measurements on powdered samples, 1 has a significant uniaxial anisotropy. Frequency-dependent alternating-current susceptibility signals were clearly observed, indicating slow magnetic relaxation. Thus, complex 1 behaves as a single-ion magnet.
authors.affiliation: Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan.
authors.forename: Ryuta
authors.initials: R
authors.lastname: Ishikawa
authors.forename: Ryo
authors.initials: R
authors.lastname: Miyamoto
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Nojiri
authors.forename: Brian K
authors.initials: BK
authors.lastname: Breedlove
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yamashita