Synthesis, structure, and ferromagnetic behavior of decacopper(II) cluster complex supported by hexaanionic p-tert-butylthiacalix[6]arene
Synthesis, structure, and ferromagnetic behavior of decacopper(II) cluster complex supported by hexaanionic p-tert-butylthiacalix[6]arene
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DOI：
10.1021/ja0273391
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发表时间：
2002-09-25
影响因子：
15
通讯作者：
Miyano, S
中科院分区：
文献类型：
--
作者：
Kajiwara, T;Kon, N;Miyano, S
以对叔丁基硫杂杯[6]芳烃为配体，合成了纳米十铜簇合物。在配合物中，杯芳烃呈现“捏锥”构象，并通过六个苯氧基氧和五个硫原子作为十一齿配体。得到的五铜（II）亚基通过两个羟基和两个氧代基团连接以形成十铜（II）簇核心。如ESI MS所示，核心结构在醇溶液中保持完整。χ mT的温度依赖性清楚地显示了由于铜（II）离子的两个相邻磁轨道之间的正交性而导致的核心的铁磁行为。
A nanosized decacopper(II) cluster complex was synthesized usingp-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 ofχmTclearly shows ferromagnetic behavior of the core due to orthogonality between two adjoining magnetic orbitals of copper(II) ions.