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

被引：116

作者：

Akutagawa, T ^{[1
]}

Shitagami, K

Nishihara, S

Takeda, S

Hasegawa, T

Nakamura, T

Hosokoshi, Y

Inoue, K

Ikeuchi, S

Miyazaki, Y

Saito, K

机构：

[1] Hokkaido Univ, Res Inst Elect Sci, Sapporo, Hokkaido 0600812, Japan

[2] JST, CREST, Kawaguchi 3320012, Japan

[3] Hokkaido Univ, Grad Sch Environm Earth Sci, Sapporo, Hokkaido 0600810, Japan

[4] Hokkaido Univ, Grad Sch Sci, Sapporo, Hokkaido 0600810, Japan

[5] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

[6] Osaka Univ, Grad Sch Sci, Res Ctr Mol Thermodynam, Toyonaka, Osaka 5600043, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 12期

关键词：

D O I：

10.1021/ja043527a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanoscale molecular rotors that can be driven in the solid state have been realized in Cs-2([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 Cs-2([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.

引用

页码：4397 / 4402

页数：6

共 33 条

[1] M+(12-crown-4) supramolecular cations (M+ = Na+, K+, Rb+, and NH4+) within Ni(2-thioxo-1,3-dithiole-4,5-dithiolate)2 molecular conductor [J].