Complexes with switchable luminescence: Correlation between spin state, packing and emission properties

具有可切换发光的配合物：自旋态、堆积和发射特性之间的相关性

• 批准号: 463161096
• 负责人: Professorin Dr. Anna Köhler
• 金额: --
• 依托单位: Lehrstuhl für Experimentalphysik II (Optoelektronik weicher Materie)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/463161096?language=en
• 关键词: Complexes; switchable; luminescence; Correlation; between

The aim of this project is the synthesis and characterization of iron(II) and nickel(II) complexes where the spin state can be changed and with luminescent units in the ligand backbone. The underlying mechanism for a successful coupling of spin state and emission properties will be investigated to realize a reliable access to such molecular functionalized compounds. On the one hand, the ligands will be modified to control aggregation in solution (mononuclear complexes) and in the solid (via bridging ligands for coordination polymers or as aggregated monomers) to investigate the impact of aggregation on the emission properties. In parallel, the electronic properties will be modified (metal centre and its spin state, substituents at the ligand, relative position of HOMO/LUMO/SOMO) to better understand the intramolecular properties of the complexes. The aim is to realize a ligand environment that provides synergetic effects between luminescence and spin state. Furthermore, the intermolecular interactions will be used to obtain a second possibility to control the emission properties.

该项目的目的是合成和表征铁（II）和镍（II）络合物，其中自旋状态可以改变，并在配体骨架中具有发光单元。将研究自旋态和发射性质成功耦合的潜在机制，以实现对此类分子官能化化合物的可靠访问。一方面，将对配体进行改性以控制溶液（单核复合物）和固体（通过配位聚合物的桥接配体或作为聚集的单体）中的聚集，以研究聚集对发射性质的影响。同时，电子性质将被修改（金属中心及其自旋状态，配体上的取代基，HOMO/LUMO/SOMO的相对位置），以更好地理解络合物的分子内性质。其目的是实现提供发光和自旋状态之间的协同效应的配体环境。此外，分子间的相互作用将被用来获得第二种可能性，以控制发射性能。