An antiferromagnetic molecular metal based on a new bent-donor molecule.
An antiferromagnetic molecular metal based on a new bent-donor molecule.
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DOI:
10.1021/ja074840q
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发表时间:
2007-09
影响因子:
15
通讯作者:
Xunwen Xiao;T. Hayashi;H. Fujiwara;T. Sugimoto;S. Noguchi;Y. Weng;H. Yoshino;K. Murata;H. Katori
中科院分区:
文献类型:
--
作者:
Xunwen Xiao;T. Hayashi;H. Fujiwara;T. Sugimoto;S. Noguchi;Y. Weng;H. Yoshino;K. Murata;H. Katori
The crystal of a (ethylenedioxytetrathiafulvalenoquinone-1,3-diselenolemethide, 1)2·FeBr4·(1,2-dichloroethane, DCE)1/2 salt obtained by electrochemical oxidation of 1 in DCE containing a supporting electrolyte, NBu4·FeBr4, exhibits metallic conductivity down to 0.45 K. The negative magnetoresistance of the electrical resistance (ρ∥) in the conducting ab-plane suggests stronger interactions between the d spins of the FeBr4- ions and the conducting π electrons than those in the FeCl4- salt of the corresponding 1,3-dithiolemethide donor molecule. The d spins order antiferromagnetically at 4.5 K, the highest temperature obtained so far in antiferromagnetic molecular metals with significant π−d interactions.