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首页> 外文期刊>Angewandte Chemie >Property-Oriented Rational Design of Single-Molecule Magnets: A C3-Symmetric Mn6Cr Complex based on Three Molecular Building Blocks with a Spin Ground State of St=21/2
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Property-Oriented Rational Design of Single-Molecule Magnets: A C3-Symmetric Mn6Cr Complex based on Three Molecular Building Blocks with a Spin Ground State of St=21/2

机译：单分子磁体的面向属性的合理设计：基于三个分子结构单元的C3对称Mn6Cr配合物，其自旋基态为St = 21/2

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摘要

Single-molecule magnets (SMMs) are a class of coordination compounds that attract attention because of their magnetic bistability.[1] These finite-size molecules show a slow relaxation of the magnetization at low temperatures owing to an energy barrier for spin reversal resulting in a hysteresis of the magnetization which is of purely molecular origin.[2], [3] SMMs promise access to dynamic random access memory (RAM) devices for quantum computing and to ultimate high-density memory storage devices in which each bit of digital information might be stored on a single molecule.[4] The energy barrier (DStSt2) for spin reversal arises from the combination of a high spin ground state St and a magnetic anisotropy of the easy-axis type (negative zero-field splitting parameter DSt). The archetype of SMMs is the family of dodecanuclear manganese complexes, [Mn12O12(O2CR)16(OH2)4], Mn12.[2], [5] Since the discovery of the fascinating SMM behavior of Mn12, a lot of synthetic efforts have been devoted to the preparation of new molecules with an increased anisotropy barrier and impressive new structural motives have been reported.[6]
机译：单分子磁体（SMM）是一类配位化合物，由于其双稳态具有磁性，因此备受关注。[1]这些有限大小的分子由于自旋反转的能垒而导致在低温下磁化的缓慢弛豫，从而导致了纯分子起源的磁化磁滞。[2]，[3] SMM有望获得动态随机用于量子计算的访问存储器（RAM）设备，以及最终的高密度存储设备，其中数字信息的每一位可能存储在单个分子上。[4]自旋反转的能垒（DStSt2）由高自旋基态St和易轴型磁各向异性（负零场分裂参数DSt）共同产生。 SMM的原型是十二指核锰配合物，[Mn12O12（O2CR）16（OH2）4]，Mn12。[2]，[5]自从发现Mn12令人着迷的SMM行为以来，已经进行了许多合成工作致力于制备具有增加的各向异性势垒的新分子，并已报道了令人印象深刻的新结构动机。[6]

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