Mechanochemie als Weg zu neuen Festkörpern ; Mechanochemistry as a path to new solids

This study is focused on the application of mechanochemical synthesis methods in solid state chemistry, especially the mechanochemical synthesis of crystal compounds with mixed anions. The mechanochemical synthesis of quaternary oxide fluorides has been investigated, but no new compound could be synthesized. A new quaternary sulfide chloride, FeBiS2Cl, could be synthesized mechanochemically. It crystallizes in the orthorhombic space group Cmcm. Additionally, a new copper-containing sulfide chloride, CuBi2S3Cl, and its corresponding sulfide bromide, CuBi2S3Br, were synthesized mechanochemically. Both crystallize isotypically in the space group C2/m. Furthermore, a silver- and indium-containing sulfide chloride, AgInSCl2, was synthesized mechanochemically. X-ray data analysis shows that the compound probably crystallizes in the spinel-type structure (space group Fd3 ̅m) with cation deficiencies. Unfortunately, due to the mediocre crystallinity of the sample and its air, moisture and light sensitivity, the data quality did not allow a full characterization of the structure. Moreover, the use of mechanochemistry could be expanded to molecular chemistry. In cooperation with the Teichert work group the mechanochemical synthesis of a copper(I) N-heterocyclic carbene complex was developed, using only the ligand precursor, copper chloride and potassium phosphate as an easily accessible base. ; Die vorliegende Arbeit beschäftigt sich mit der Anwendung von mechanochemischen Synthesemethoden in der Festkörperchemie, insbesondere der mechanochemischen Synthese von Festkörpern mit mehr als einer Anionensorte. Die mechanochemische Synthese von quaternären Oxidfluoriden wurde intensiv untersucht, jedoch konnten im Rahmen dieser Arbeit keine bisher literaturunbekannten Oxidfluoride hergestellt werden. Bei Versuchen zur mechanochemischen Synthese von Sulfidchloriden konnten mehrere bisher literaturunbekannte Verbindungen hergestellt werden. Das quaternäre Sulfidchlorid FeBiS2Cl kristallisiert in der orthorhombischen Raumgruppe ...