New unusual magnetic complexes: synthesis, electronic and magnetic properties

新的不寻常的磁性配合物：合成、电子和磁性

• 批准号: 213590445
• 负责人: Professor Dr. Martin Knupfer
• 金额: --
• 依托单位: Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden (IFW) e.V.
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/213590445?language=en
• 关键词: New; unusual; magnetic; complexes; synthesis

This proposed interdisciplinary project ideally combines the expertise of the German partner in the physics/spectroscopy and the Russian partner in phosphorus and organometallic chemistry. The aim of the project is to create new advanced magnetic materials, using a new synthetic approach starting from non-magnetic transition metal precursors and novel non-innocent phosphorus ligands, which drastically expands the range of new materials. Preliminary joint studies demonstrate that such complexes of usually diamagnetic metal atoms exhibit paramagnetic properties. Their molecular structure reveals a significant metal-to-ligand charge transfer and redistribution of electron density in the ligand, which provides through-bond interaction between the metals centers. Unusual magnetic properties of such complexes and non-clear oxidation states of the metal atoms give a spur to understand the fundamental aspects of their electronic structure and magnetism. For this purpose we plan to apply spectroscopic methods (PES, NEXAFS, XMCD) to determine the electronic structure in detail. Further understanding of the electron density distribution will be achieved via X-ray precision experiments and theoretical calculations. The established magneto-structural correlations will provide the possibility of tuning magnetic properties via adjusting peripheral substituents.

这个跨学科项目完美地结合了德国合作伙伴在物理/光谱学方面的专业知识和俄罗斯合作伙伴在磷和有机金属化学方面的专业知识。该项目的目的是创造新的先进磁性材料，使用一种新的合成方法，从非磁性过渡金属前体和新型非无害磷配体开始，大大扩展了新材料的范围。初步的联合研究表明，这种通常是反磁性金属原子的复合物具有顺磁性。它们的分子结构揭示了显着的金属与配体的电荷转移和配体中电子密度的重新分布，这提供了金属中心之间的通过键相互作用。这种复合物的不寻常的磁性和金属原子的不明确的氧化态，刺激了人们对它们的电子结构和磁性的基本方面的理解。为此，我们计划应用光谱方法（PES，NEXAFS，XMCD）来确定详细的电子结构。通过X射线精密实验和理论计算，将进一步了解电子密度分布。所建立的磁结构相关性为通过调节外围取代基来调控磁性提供了可能性。

项目成果

Crystal structure of phosphonium carboxylate complexes. The role of the metal coordination geometry, ligand conformation and hydrogen bonding

• DOI: 10.1039/c4ce01361a
• 发表时间: 2014-09
• 期刊: CrystEngComm
• 影响因子: 3.1
• 作者: I. Galkina;A. Tufatullin;D. Krivolapov;Yuliya V. Bakhtiyarova;D. Chubukaeva;V. Stakheev;V. Galkin;R. Cherkasov;B. Büchner;O. Kataeva

Electronic properties of the charge transfer material MnPc/F4TCNQ

• DOI: 10.1063/1.4962578
• 发表时间: 2016-09-21
• 期刊: JOURNAL OF CHEMICAL PHYSICS
• 影响因子: 4.4
• 作者: Rueckerl, Florian;Mahns, Benjamin;Kortus, Jens
• 通讯作者: Kortus, Jens

Synthesis and magnetic properties of manganese carbonyl complexes with different coordination modes of 3,4,5-triaryl-1,2-diphospholide ligands.

• DOI: 10.1039/c5dt00624d
• 发表时间: 2015-05
• 期刊: Dalton transactions
• 影响因子: 4
• 作者: V. Miluykov;I. Bezkishko;L. Kochetkova;O. Kataeva;T. Gerasimova;S. Katsyuba;O. Sinyashin;P. Lönnecke;E. Hey‐Hawkins;Anupama Parameswaran;Y. Krupskaya;V. Kataev;B. Büchner

Crystal Growth, Dynamic and Charge Transfer Properties of New Coronene Charge Transfer Complexes

• DOI: 10.1021/acs.cgd.5b01301
• 发表时间: 2016-01-01
• 期刊: CRYSTAL GROWTH & DESIGN
• 影响因子: 3.8
• 作者: Kataeva, Olga;Khrizanforov, Mikhail;Knupfer, Martin
• 通讯作者: Knupfer, Martin

Particular electronic properties of F16CoPc: A decent electron acceptor material

F16CoPc 的特殊电子特性：一种不错的电子受体材料

• DOI: 10.1016/j.elspec.2016.11.013
• 发表时间: 2017
• 期刊: Journal of Electron Spectroscopy and Related Phenomena
• 影响因子: 1.9
• 作者: F. Rückerl;D. Waas;B. Büchner;M. Knupfer
• 通讯作者: M. Knupfer