Synthesis and magnetic properties of homo/hetero/oligo metallic supramolecular assemblies

同质/异质/寡聚金属超分子组装体的合成和磁性能

• 批准号: 5368475
• 负责人: Professor Dr. Rolf W. Saalfrank
• 金额: --
• 依托单位: Lehrstuhl für Anorganische und Allgemeine Chemie
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2002
• 资助国家: 德国
• 起止时间: 2001-12-31 至 2008-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5368475?language=en
• 关键词: Synthesis; magnetic; properties; homo; hetero

The ultimate objective target in the field of single molecule magnets (SMM) is, to conceive molecules with a blocking temperature Tb lager than room temperature, since this potentially would allow applications of these systems in e.g molecular storage devices or even quantum computers. A very successful cooperation of our synthetic group with Prof. Dr. P. Müller and Dr. O. Waldmann (Physikalisches Institut III, Universität Erlangen-Nürnberg) guaranties deeper insights into synthesis and theory of SMMs. Concretely, we have to our disposal sufficient synthetic expertise to create new, or tailored oligo/poly/(homo-/hetero metallic)/(homo-/hetero valent) systems, interesting for SMM studies. More precise, objectives we focus on, are cation occupied ferric wheels like six- and eightmembered {Na [Fe6[N(CH2CH2O)3]6]}Cl and {Cs [Fe8[N(CH2CH2O)3]8]}Cl, or unoccupied {Fe6[H3C(CH2)3N(CH2CH2O)2]6}. Another group of clusters of interest are star-shaped homo-/hetero metallic tetranuclear systems like {M[Fe(L)2]3} (M = Fe, Cr, Al; H2L = N-methyldiethanolamine). Furthermore, we also focus on triangular and rectangular home-/hetero metallic, mixed valence species. In the field of coordination polymers, we intend to study oxo-bridged metal strings [{Cs [Ni2(L)3]}Cs]n and a family of 1D-, 2D-, and 3D-coordination polymers.

在单分子磁体（SMM）领域中的最终目标是设想具有大于室温的阻断温度Tb的分子，因为这潜在地将允许这些系统在例如分子存储设备甚至量子计算机中的应用。我们的合成团队与P. Müller教授和O. Waldmann（埃尔朗根-纽伦堡大学Physikalisches Institut III）对SMM的合成和理论有更深入的见解。具体地说，我们有足够的合成专业知识来创造新的，或定制的寡/聚/（均/杂金属）/（均/杂价）系统，有趣的SMM研究。更准确地说，我们关注的目标是阳离子占据的铁轮，如六元和八元{Na [Fe 6 [N（CH 2CH 2 O）3]6]}Cl和{Cs [Fe 8 [N（CH 2CH 2 O）3]8]}Cl，或未占据的{Fe 6 [H3C（CH 2）3 N（CH 2CH 2 O）2]6}。另一组感兴趣的簇是星形同/异金属四核系统，如{M[Fe（L）2]3}（M = Fe，Cr，Al; H2 L = N-甲基二乙醇胺）。此外，我们还专注于三角形和矩形家庭/杂金属，混合价物种。在配位聚合物领域，我们打算研究氧桥金属串[{Cs [Ni 2（L）3]}Cs]n和一族1D-、2D-和3D-配位聚合物。