TY - JOUR
T1 - Electrochemical development of magnetic long-range correlations with Tc = 128 K in a tetraoxolene-bridged Fe-based framework
AU - Chen, Jian
AU - Taniguchi, Koji
AU - Sekine, Yoshihiro
AU - Miyasaka, Hitoshi
N1 - Funding Information:
We thank Prof. T. Akutagawa and Dr. N. Hoshino ( Tohoku University ) for their help with the ESR measurements. This work was supported by Grants-in-Aid for Scientific Research (Grant Nos. 16K05738 and 16H02269 ), Grants-in-Aid for Scientific Research in Innovative Areas (Grant no. JP17H05137 ; ‘π-System Figuration’ Area 2601, Grant no. JP17H05350 ; ‘Coordination Asymmetry’ Area 2802) from JSPS , the MEXT program ‘Elements Strategy Initiative to Form a Core Research Center’ (since 2012) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan, a Support Program for Interdisciplinary Research ( FRIS project), the E-IMR project, the Kato Foundation for Promotion of Science , the Iketani Science and Technology Foundation , and the Shorai Foundation for Science and Technology . J. C. gratefully acknowledges financial support from the Chinese Scholarship Council (CSC) and Institute for Materials Research, Tohoku University .
Publisher Copyright:
© 2019
PY - 2020/1/15
Y1 - 2020/1/15
N2 - The generation of the paramagnetic radical (Cl2An[rad]3−) in the framework-edge moieties of an Fe-based two-dimensional honeycomb framework with 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinonate (Cl2Ann −), (H3O)2(phz)3[Fe2(Cl2An)3] (phz = phenazine), allowed the formation of long-range magnetic correlations over the network with a relative high magnetic phase transition temperature (Tc) of 128 K. The original compound is a paramagnet with a diamagnetic Cl2An2− linker that significantly separates paramagnetic FeII ions (S = 2), where the [(H3O)2(phz)3]2+ cation is located between layered frameworks. Post-synthetic electron-doping, i.e., reduction in the solid state, using a lithium-ion battery (LIB) system, finally produced (Li+)3(H3O+)2(phz)3[(Fe2+)2(Cl2An[rad]3−)3], which demonstrated a drastic magnetic change.
AB - The generation of the paramagnetic radical (Cl2An[rad]3−) in the framework-edge moieties of an Fe-based two-dimensional honeycomb framework with 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinonate (Cl2Ann −), (H3O)2(phz)3[Fe2(Cl2An)3] (phz = phenazine), allowed the formation of long-range magnetic correlations over the network with a relative high magnetic phase transition temperature (Tc) of 128 K. The original compound is a paramagnet with a diamagnetic Cl2An2− linker that significantly separates paramagnetic FeII ions (S = 2), where the [(H3O)2(phz)3]2+ cation is located between layered frameworks. Post-synthetic electron-doping, i.e., reduction in the solid state, using a lithium-ion battery (LIB) system, finally produced (Li+)3(H3O+)2(phz)3[(Fe2+)2(Cl2An[rad]3−)3], which demonstrated a drastic magnetic change.
KW - Electron-doping
KW - Fe-tetraoxolene complex
KW - Lithium ion battery
KW - Molecular magnets
KW - Postsynthetic method
KW - Two-dimensional honeycomb framework
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U2 - 10.1016/j.jmmm.2019.165818
DO - 10.1016/j.jmmm.2019.165818
M3 - Article
AN - SCOPUS:85072216886
VL - 494
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
M1 - 165818
ER -
