Field-induced slow magnetic relaxation of octahedrally coordinated mononuclear Fe(III)-, Co(II)-, and Mn(III)-containing polyoxometalates

Rinta Sato; Kosuke Suzuki; Takuo Minato; Masahiro Shinoe; Kazuya Yamaguchi; Noritaka Mizuno

doi:10.1039/c4cc09435b

Field-induced slow magnetic relaxation of octahedrally coordinated mononuclear Fe(III)-, Co(II)-, and Mn(III)-containing polyoxometalates

Chem Commun (Camb). 2015 Mar 7;51(19):4081-4. doi: 10.1039/c4cc09435b.

Authors

Rinta Sato¹, Kosuke Suzuki, Takuo Minato, Masahiro Shinoe, Kazuya Yamaguchi, Noritaka Mizuno

Affiliation

¹ Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. ksuzuki@appchem.t.u-tokyo.ac.jp tmizuno@mail.ecc.u-tokyo.ac.jp.

PMID: 25664359
DOI: 10.1039/c4cc09435b

Abstract

Herein, we report for the first time polyoxometalate (POM)-based single-molecule magnets with mononuclear transition metal cores. The mononuclear Fe(III)-, Co(II)-, and Mn(III)-containing POMs have successfully been synthesized from a trivacant lacunary Keggin-type silicotungstate precursor TBA4H6[A-α-SiW9O34]·2H2O (TBA = tetra-n-butylammonium), and the highly distorted octahedral geometries of the incorporated metal cations resulted in the magnetic anisotropies and the single-molecule magnet behavior with mononuclear paramagnetic metal ions under the applied dc field.