TY - JOUR
T1 - Magnetic Correlation Engineering in Spin-Sandwiched Layered Magnetic Frameworks
AU - Fukunaga, Hiroki
AU - Kosaka, Wataru
AU - Nemoto, Honoka
AU - Taniguchi, Kouji
AU - Kawaguchi, Shogo
AU - Sugimoto, Kunihisa
AU - Miyasaka, Hitoshi
N1 - Funding Information:
This work was supported by a Grant‐in‐Aid for Scientific Research (No. 16H02269, 16K05738, 18K19050, 18K05055, 18H05208, 20H00381) from MEXT, Japan, and E‐IMR project, and Grant Fund for Research and Education of Institute for Materials Research, Tohoku University. H.F. is thankful for the JSPS KAKENHI (No. 16J02071).
Publisher Copyright:
© 2020 Wiley-VCH GmbH
PY - 2020/12/15
Y1 - 2020/12/15
N2 - 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.
AB - 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.
KW - layered compounds
KW - magnetic properties
KW - metallocenes
KW - ruthenium
KW - solid-state structures
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U2 - 10.1002/chem.202002588
DO - 10.1002/chem.202002588
M3 - Article
C2 - 32648594
AN - SCOPUS:85096770926
SN - 0947-6539
VL - 26
SP - 16755
EP - 16766
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 70
ER -