Ferromagnetic behavior of a tetrafluorotetracyanoquinodimethanide salt at room temperature

被引：31

作者：

Sugimoto, T

Ueda, K

Tsujii, M

Fujita, H

Hosoito, N

Kanehisa, N

Shibamoto, Y

Kai, Y

机构：

[1] KYOTO UNIV,INST CHEM RES,UJI,KYOTO 611,JAPAN

[2] OSAKA UNIV,DEPT APPL CHEM,SUITA,OSAKA 565,JAPAN

[3] KYOTO UNIV,FAC INTEGRATED STUDIES,DIV NAT ENVIRONM,YOSHIDA,KYOTO 606,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 249卷 / 5-6期

关键词：

D O I：

10.1016/0009-2614(95)01418-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Recrystallization of N(CH3)(4)(+). TCNQF(4)(-.) in the presence of TCNQF(4) from acetonitrile/ether gave a crystal of {N(CH3)(4)(+). TCNQF(4)(-.)}. 1/2(TCNQF(4)), which very interestingly exhibited ferromagnetism at room temperature. This organic ferromagnet has characteristics of very small saturation moment (1.03 x 10(-3) mu(B)/molecule) and coercive field (approximate to 25 Oe). The origin of this ferromagnetism could be attributed to a unique crystal structure of the radical anion salt: the TCNQF(4)/TCNQF(4)(-.) and N(CH3)(4)(+) ion layers are alternately stacked and in the TCNQF(4)/TCNQF(4)(-.) layer each pair of two TCNQF(4)(-.) molecules is arranged in a completely perpendicular manner to each of one TCNQF(4) molecule.

引用

页码：304 / 308

页数：5

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