Molecular rotor of Cs2([18]crown-6)3 in the solid state coupled with the magnetism of [Ni(dmit)2]

Tomoyuki Akutagawa; Kozo Shitagami; Sadafumi Nishihara; Sadamu Takeda; Tatsuo Hasegawa; Takayoshi Nakamura; Yuko Hosokoshi; Katsuya Inoue; Satoshi Ikeuchi; Yuji Miyazaki; Kazuya Saito

doi:10.1021/ja043527a

Molecular rotor of Cs2([18]crown-6)3 in the solid state coupled with the magnetism of [Ni(dmit)2]

J Am Chem Soc. 2005 Mar 30;127(12):4397-402. doi: 10.1021/ja043527a.

Authors

Tomoyuki Akutagawa¹, Kozo Shitagami, Sadafumi Nishihara, Sadamu Takeda, Tatsuo Hasegawa, Takayoshi Nakamura, Yuko Hosokoshi, Katsuya Inoue, Satoshi Ikeuchi, Yuji Miyazaki, Kazuya Saito

Affiliation

¹ Research Institute for Electronic Science, Hokkaido University, Sapporo 060-0812, Japan.

PMID: 15783222
DOI: 10.1021/ja043527a

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.