Molecular Rotor of Cs2([18]crown-6)3 in the Solid State Coupled with the Magnetism of [Ni(dmit)2]
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- 作者：Tomoyuki Akutagawa ; Kozo Shitagami ; Sadafumi Nishihara ; Sadamu Takeda ; Tatsuo Hasegawa ; ; Takayoshi Nakamura ; Yuko Hosokoshi ; Katsuya Inoue ; Satoshi Ikeuchi ; Yuji Miyazaki ; and Kazuya Saito
- 刊名：Journal of the American Chemical Society
- 出版年：2005
- 出版时间：March 30, 2005
- 年：2005
- 卷：127
- 期：12
- 页码：4397 - 4402
- 全文大小：490K
- 年卷期：v.127,no.12(March 30, 2005)
- ISSN：1520-5126
文摘
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 theelectronic system, [Ni(dmit)2]- ions, which bear one S = 1/2 spin on each molecule, were introduced intothe crystal. Rotation of the [18]crown-6 molecules within a Cs2([18]crown-6)3 supramolecule above 220 Kwas confirmed using X-ray diffraction, NMR, and specific heat measurements. Strong correlations wereobserved between the magnetic behavior of the [Ni(dmit)2]- ions and molecular rotation. Furthermore, brakingof the molecular rotation within the crystal was achieved by the application of hydrostatic pressure.