Halogenido alkalates: Synthesis and characterization of coordination compounds of the alkali metals from ionic liquids

该项目将通过系统的合成工作结合理论估计，对卤代碱化合物类有一个复杂的了解。这些化合物代表了经典盐和配位化合物之间的联系，因为所涉及的元素不能形成经典的化学键，但显示复杂的阴离子亚结构。这些化合物是在中等温度下在液体盐中合成的，所谓的离子液体，在电池技术中被讨论为电解质。虽然我们的初步工作提供了这类化合物的第一个结构证据，但到目前为止，电解质中聚阴离子卤代碱的存在只是假设。在本项目的范围内，追求的可能的各种结构，精力充沛的考虑，并影响合成参数的基本理解的复杂的理解。通过系统地改变合成参数，所涉及的离子，以及水含量，大量的新的结构图案，预计将作为能量的考虑和后续模型的基础，用于预测新的化合物。一个特别的重点将进一步对溶解的物种，这一方面将有助于形成过程的理解，另一方面有助于识别电解质系统中的卤代碱的表征。

This project will obtain a complex understanding of the compound class of halido alkalates through systematic synthetic work in combination with theoretical estimates. Such compounds represent a link between classic salts and coordination compounds, since the elements involved cannot form classic chemical bonds, yet display complex anionic substructures. These compounds are synthesized at medium temperatures in liquid salts, so-called ionic liquids, which are discussed as electrolytes in battery technology. Whilst our preliminary work provided the first structural evidence for this class of compounds, the existence of polyanionic halido alkalates in electrolytes has so far only been postulated. Within the scope of the presented project, a complex understanding of the possible variety of structures, energetic considerations, and a fundamental understanding of the influencing synthetic parameters are pursued. By systematically varying the synthesis parameters, the ions involved, as well as the water content, a large number of novel structural motifs are expected, which will serve as a basis for energetic considerations and subsequent models for the prediction of new compounds. A special focus will further be on the characterization of dissolved species, which on the one hand will contribute to the understanding of the formation processes and on the other hand contribute to the identification of halido alkalates in electrolyte systems.