@article{6e52b9b9d3d94aa2a7b236f213c73316,
title = "Benzenetriimide-Based Molecular Conductor with Antiferro- to Ferromagnetic Switching Induced by Structural Change of π-stacked Array",
abstract = "Benzenetriimide (BTI) is a promising building block for materials chemistry due to its characteristic 3-fold symmetry and redox properties, whereas little is known about its conductive and magnetic properties. In this study, we synthesized three charge-transfer complexes based on N,N{\textquoteright},N{\textquoteright}{\textquoteright}-trimethylbenzenetriimide (BTI-Me). One of the complexes contains isolated dimers of BTI-Me radical anion (BTI-Me⋅−), while the other two have the infinite π-stacked array of BTI-Me with the formal charge of −0.5. The latter two complexes did not show metallic behavior but showed semiconducting behavior probably due to the characteristic insulation in one-dimensional electron system, so-called charge ordering and dimer-Mott insulation. The magnetic susceptibility of the complex in dimer-Mott state exhibits an unusual transition from antiferromagnetic to ferromagnetic spin states with the hysteresis loop of 15 K derived from the structural phase transition around 130 K. These properties were also supported by DFT calculations.",
keywords = "benzentriimide, molecular conductors, molecular magnetism, redox properties, π-stacking",
author = "Shohei Koyama and Yoji Horii and Tetsu Sato and Shinya Takaishi and Norihisa Hoshino and Tomoyuki Akutagawa and Hiroaki Iguchi",
note = "Funding Information: The authors would like to thank Mr. Shuntaro Yanamaka for providing the information and advice about the SXRD measurement in this work. This work was supported by JSPS KAKENHI Grant Numbers JP20 J22404 (S. K.), JP21H01901 (H.I.) and JP21 K18971 (H.I.), by the Toyota Riken Scholar Program (H.I.), by the Kato Foundation for Promotion of Science KJ‐2916 (H.I.), and by Iketani Science and Technology Foundation 0331101‐A (H.I.). Funding Information: The authors would like to thank Mr. Shuntaro Yanamaka for providing the information and advice about the SXRD measurement in this work. This work was supported by JSPS KAKENHI Grant Numbers JP20 J22404 (S. K.), JP21H01901 (H.I.) and JP21 K18971 (H.I.), by the Toyota Riken Scholar Program (H.I.), by the Kato Foundation for Promotion of Science KJ-2916 (H.I.), and by Iketani Science and Technology Foundation 0331101-A (H.I.). Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH.",
year = "2022",
month = oct,
day = "6",
doi = "10.1002/cphc.202200322",
language = "English",
volume = "23",
journal = "ChemPhysChem",
issn = "1439-4235",
publisher = "Wiley-VCH Verlag",
number = "19",
}