Magnetic Correlation Engineering in Spin-Sandwiched Layered Magnetic Frameworks

Hiroki Fukunaga, Wataru Kosaka, Honoka Nemoto, Kouji Taniguchi, Shogo Kawaguchi, Kunihisa Sugimoto, Hitoshi Miyasaka

Research output: Contribution to journalArticlepeer-review

Abstract

The insertion of “sandwiched spins” between magnetic layers could efficiently affect the interlayer magnetic correlations, but doing so increases the complexity in the interlayer spin alignment because of competition between the inserted spin-layer interaction JNNI and the interlayer through-space interaction JNNNI if the magnitude of JNNI is of the same order as JNNNI with reciprocal signs of the respective interactions. Herein, systematic tuning of the magnetic phase variations by JNNI and JNNNI in two kinds of metal-variable isostructural series of supramolecular pillared layer magnets [MCp*2][{Ru2II,II(2,3,5,6-F4CO2)4}2(TCNQ)]⋅2 DCE (M=Co, Fe, Cr; 2,3,5,6-F4PhCO2=2,3,5,6-tetrafluorobenzoate; TCNQ=7,7,8,8-tetracyano-p-quinodimethane; DCE=1,2-dichloroethane) and their DCE-free series, in which [MCp*2]+ (Cp*=η5-C5Me5) species with S=0, 1/2, and 3/2 for M=Co, Fe, Cr, respectively, are sandwiched between ferrimagnetic layers of [{Ru2}2(TCNQ)], is demonstrated. The results showed that the flexible magnetic natures of these magnets are changeable in dependence on JNNI and JNNNI, as well as on interlayer inserted spins M.

Original languageEnglish
Pages (from-to)16755-16766
Number of pages12
JournalChemistry - A European Journal
Volume26
Issue number70
DOIs
Publication statusPublished - 2020 Dec 15

Keywords

  • layered compounds
  • magnetic properties
  • metallocenes
  • ruthenium
  • solid-state structures

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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