Antimony and bismuth-based coordination polymers with pyridyl-N-donors and the influence of the lone-pair character on their luminescence

具有吡啶基-N-供体的锑和铋基配位聚合物及其孤对电子特征对其发光的影响

• 批准号: 492579721
• 负责人: Professor Dr. Klaus Müller-Buschbaum
• 金额: --
• 依托单位: Institut für Anorganische und Analytische Chemie
• 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/492579721?language=en
• 关键词: Antimony; bismuth; based; coordination; polymers

This study is supposed to provide a focused investigation of reactions of trivalent halides of antimony and bismuth together with di- and tripodal N-donor ligands with pyridyl functions. The objective of this project is the achievement of a better understanding of the luminescence properties of group 15 bismuth- and antimony-containing coordination polymers. Hereby, especially, the influence of stereochemically active electron lone-pairs of Bi(III)/Sb(III) will be a focus. In addition, substitution with lanthanide ions with respect to a statistic replacement will be investigated and regions of miscibility and the luminescence properties determined. Preparative chemistry and analytical results will be supported by quantum chemical calculations in order to better understand the broadband transitions of these group 15 compounds. The new coordination polymers are also planned to be investigated regarding the questions, if such group 15 compounds are suitable new host lattices for lanthanide-ions in coordination chemistry, and if group 15 coordination polymers may even be an alternative to lanthanide containing phosphors in the future. Especially the influence of the lone pair character is in the focus of this project, as preliminary work presumes strong influences on the luminescence properties. The project is motivated mainly by fundamental scientific and touches questions on potential optical applications.

本研究旨在为锑和铋的三价卤化物与具有吡啶基功能的二足和三足n给体的反应提供重点研究。该项目的目标是更好地理解15族含铋和含锑配位聚合物的发光特性。因此，Bi(III)/Sb（III）的立体化学活性电子对的影响将成为研究的重点。此外，与镧系离子取代的统计替换将进行研究，并确定混相区域和发光性质。为了更好地理解这些第15族化合物的宽带跃迁，制备化学和分析结果将得到量子化学计算的支持。在配位化学中，15族化合物是否适合作为镧系离子的新主体晶格，以及15族配位聚合物是否有可能成为含镧系荧光粉的替代品，这些问题也将被研究。特别是孤对特性的影响是这个项目的重点，因为初步的工作假设对发光特性有很强的影响。该项目的动机主要是基础科学和涉及潜在光学应用的问题。