Synthesis, structure, and ferromagnetic behavior of decacopper(II) cluster complex supported by hexaanionic p-tert-butylthiacalix[6]arene

被引:66
作者
Kajiwara, T [1 ]
Kon, N
Yokozawa, S
Ito, T
Iki, N
Miyano, S
机构
[1] Tohoku Univ, Dept Chem, Grad Sch Sci, Aoba Ku, Sendai, Miyagi 9808578, Japan
[2] Tohoku Univ, Dept Biomed Engn, Grad Sch Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan
关键词
D O I
10.1021/ja0273391
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A nanosized decacopper(II) cluster complex was synthesized using p-tert-butylthiacalix[6]arene as a ligand. In the complex, the calixarene assumes a "pinched cone" conformation and acts as an undecadentate ligand via six phenoxy oxygen and five sulfur atoms. The resulting pentacopper(II) subunits are connected by two hydroxo and two oxo groups to form decacappoer(II) cluster core. The core structure remains intact in alcoholic solution as shown by ESI MS. The temperature dependence of χmT clearly shows ferromagnetic behavior of the core due to orthogonality between two adjoining magnetic orbitals of copper(II) ions. Copyright © 2002 American Chemical Society.
引用
收藏
页码:11274 / 11275
页数:2
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