title: Molecular rotor of Cs2([18]crown-6)3 in the solid state coupled with the magnetism of [Ni(dmit)2].
abstract: Nanoscale molecular rotors that can be driven in the solid state have been realized in Cs2([18]crown-6)3[Ni(dmit)2]2 crystals. To provide interactions between the molecular motion of the rotor and the electronic system, [Ni(dmit)2]- ions, which bear one S=1/2 spin on each molecule, were introduced into the crystal. Rotation of the [18]crown-6 molecules within a Cs2([18]crown-6)3 supramolecule above 220 K was confirmed using X-ray diffraction, NMR, and specific heat measurements. Strong correlations were observed between the magnetic behavior of the [Ni(dmit)2]- ions and molecular rotation. Furthermore, braking of the molecular rotation within the crystal was achieved by the application of hydrostatic pressure.
authors.affiliation: Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Akutagawa
authors.forename: Kozo
authors.initials: K
authors.lastname: Shitagami
authors.forename: Sadafumi
authors.initials: S
authors.lastname: Nishihara
authors.forename: Sadamu
authors.initials: S
authors.lastname: Takeda
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Hasegawa
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Nakamura
authors.forename: Yuko
authors.initials: Y
authors.lastname: Hosokoshi
authors.forename: Katsuya
authors.initials: K
authors.lastname: Inoue
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ikeuchi
authors.forename: Yuji
authors.initials: Y
authors.lastname: Miyazaki
authors.forename: Kazuya
authors.initials: K
authors.lastname: Saito