Supramolecular Synthesis of Molecular Clusters: Topological Control of Hybrid Nanomagnets

分子簇的超分子合成：混合纳米磁体的拓扑控制

• 批准号: EP/H011188/1
• 负责人: Scott Dalgarno
• 金额: $ 39.67万
• 依托单位: Heriot-Watt University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2010
• 资助国家: 英国
• 起止时间: 2010 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FH011188%2F1
• 关键词: Supramolecular; Synthesis; Molecular; Clusters; Topological

Polynuclear cages of paramagnetic transition metal ions can exhibit fascinating physical properties and have great potential in the field of single molecule magnetism and molecular spintronics. Supramolecular chemistry is defined as chemistry beyond the molecule, and examines (amongst other things) intermolecular interactions. Such interactions (e.g. hydrogen bonding) can have profound effects on the bulk phase of molecular nanomagnets (MNM) and we propose to modulate the interactions found between MNMs by marrying the two areas of research. We are going to approach this problem in two different yet intimately related ways with cyclic cavity containing molecules called calixarenes. These molecules can be functionalised with relative ease, and can also be combined with other small molecules to make covalent cage structures. In order to modulate these interactions we will a) form metal clusters within these cages, b) substitute groups on MNMs with functional calixarenes, and c) make 3-D arrays of MNMs with single calixarenes or molecular cages. Dr. Scott J. Dalgarno has expertise in calixarene synthesis and crystallographic studies on large supramolecular systems and Dr. Euan K. Brechin is a world leader in molecular magnetism. These techniques will be critical in elucidating the modulation of the intermolecular interactions, and will allow us to tune the magnetic properties of the resulting metal clusters for potential exploitation in the aforementioned fields of application.

顺磁性过渡金属离子的多核笼在单分子磁学和分子自旋电子学领域具有很好的应用前景。超分子化学被定义为超越分子的化学，并研究（除其他外）分子间的相互作用。这种相互作用（例如氢键）可以对分子纳米磁体（MNM）的体相产生深远的影响，我们建议通过结合两个研究领域来调节纳米磁体之间的相互作用。我们将用两种不同但密切相关的方法来解决这个问题，用环状腔来包含杯芳烃分子。这些分子可以相对容易地功能化，也可以与其他小分子结合形成共价笼结构。为了调节这些相互作用，我们将a)在这些笼内形成金属簇，b)用功能性杯芳烃取代mnm上的基团，以及c)用单个杯芳烃或分子笼制作mnm的三维阵列。Scott J. Dalgarno博士在杯芳烃合成和大型超分子系统的晶体学研究方面拥有专业知识，Euan K. Brechin博士是分子磁学领域的世界领导者。这些技术对于阐明分子间相互作用的调制至关重要，并将使我们能够调整所得金属团簇的磁性，以便在上述应用领域中进行潜在的开发。

项目成果

p-tert-Butylcalix[8]arene: an extremely versatile platform for cluster formation.

• DOI: 10.1002/chem.201202644
• 发表时间: 2012-12
• 期刊: Chemistry
• 作者: Stephanie M. Taylor;S. Sanz;R. McIntosh;C. Beavers;S. Teat;E. Brechin;S. Dalgarno

Reprint of "Cobalt(II) complexes of calix[6]arenes: Crystallographic studies into heteroatom bridge influence over discrete versus polymeric structure formation"

重印“杯[6]芳烃的钴(II)配合物：杂原子桥对离散结构与聚合结构形成影响的晶体学研究”

• DOI: 10.1016/j.poly.2013.07.026
• 发表时间: 2013
• 期刊: Polyhedron
• 影响因子: 2.6
• 作者: McLellan R