beta-Silyl phospholes as photoluminescent pi-systems

近年来，磷光材料作为光致发光材料出现，并为分子电子学领域的器件发展提供了独特的性能。在这个项目中，我们提出了一种合成方法，以获得一种新型的在磷醚体系的β-位上带有硅基取代基的磷烯。硅基单元旨在调节磷光体的电子状态，并且还可以用作将发色团附着在表面上的锚定单元。它的目的是不仅将磷光单元附着到宏观表面，而且还附着在氧化物纳米颗粒和POSS笼子上，以研究发色团之间的相互作用。在温和的条件下以有序的方式附着应该允许深入了解这些生色团在固体界面上的性质。最终，这一基础研究的结果可能会为长期发现具有低能量激发势垒的新型材料和器件开辟道路。

In recent years, phospholes emerged as photoluminescent materials and offer special properties useful for the development of devices in the area of molecular electronics. In this project we propose a synthetic access to a novel type of phospholes carrying silyl substituents in the beta-position of the phosphole system. The silyl units are intended to modulate the electronic situation of the phosphole and furthermore may serve as anchoring units for the attachment of the chromophores on surfaces. It is intended to attach phosphole units not only to macroscopic surfaces but also to oxide nanoparticles and POSS cages to investigate the interaction of the chromophores among each other. The attachment under mild conditions in an orderly fashion should allow to get insights into the properties of these chromophores at the solid interface. Ultimately, the results of this fundamental research may open the way to the discovery of novel materials and devices with low-energy excitation barriers on a long term base.