作为单分子磁体的肟桥联三核镝-铜-镝配合物及其机理研究
Oximate-bridged trinuclear Dy-Cu-Dy complex behaving as a single-molecule magnet and its mechanistic investigation.
作者信息
Mori Fumihito, Nyui Tetsuya, Ishida Takayuki, Nogami Takashi, Choi Kwang-Yong, Nojiri Hiroyuki
机构信息
Department of Applied Physics and Chemistry and Course of Coherent Optical Science, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan.
出版信息
J Am Chem Soc. 2006 Feb 8;128(5):1440-1. doi: 10.1021/ja057183f.
Lanthanide ions are supposed to be promising candidates for the elements of single-molecule magnets (SMMs) because of the large magnetic momentum and anisotropy. We have established the [Dy2Cu] complex as a new SMM. A plausible mechanism for quantum tunneling of magnetization is proposed for the first time among the 4f-3d heterometallic SMMs. The magnetic coupling parameter between Dy and Cu ions was well-defined as -0.155 K.
镧系离子因其具有较大的磁矩和各向异性，被认为是单分子磁体（SMM）元素的有前途的候选者。我们已将[Dy2Cu]配合物确立为一种新型单分子磁体。首次在4f-3d异金属单分子磁体中提出了一种合理的磁化量子隧穿机制。Dy和Cu离子之间的磁耦合参数被明确确定为-0.155 K。
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