Die Dissertation befasst sich mit der Anwendung von niedervalenten Gruppe-14-Verbindungen in metallorganischer Chemie und Hauptgruppenchemie. Ausgehend von mono- und divalenten Siliziumverbindungen wurde die analoge Siliziumverbindung des 2?-HĂźckel-aromatischen Verbindung dargestellt (Kapitel 3.1). Ein chirales Silen wurde synthetisiert und weitere Reaktivität mit unterschiedlichen kleinen MolekĂźlen untersucht (Kapitel 3.2). AuĂerdem wurden bidentate Silylene als Liganden zur Stabilisierung von Seldenerdelementen, Erdalkalielementen und Gruppe-12-Metallen eingesetzt (Kapitel 3.3-3.4). Verschiedene Polyphosphide wurden aus reduzierenden Silylenen oder Plumbolen generiert (Kapitel 3.5-3.6). Die dianionischen Gruppe-14-Metallole, Silol, Germol und Plumbol wurden als Liganden fĂźr sandwichartige Lanthanidkomplexe eingesetzt und die magnetischen Eigenschaften der Er-Verbindung wurden untersucht (Kapitel 3.7-3.8).The dissertation focuses on the application of low-valent group 14 species in organometallic and main group chemistry. Using mono- and divalent silicon compounds, the silicon analogue of a 2? HĂźckel aromatic compound was isolated (chapter 3.1). A chiral silene was synthesized and the reactivity was studied toward different small molecules (chapter 3.2). Moreover, bidentate silylenes were used as ligands to stabilize rare-earth elements, alkaline-earth elements as well as group 12 metals (chapter 3.3-3.4). Polyphosphides were achieved by using silylenes or plumboles as reducing agents (chapter 3.5-3.6). Dianionic group 14 metalloles, namely, silole, germole and plumboles were used as ligands for sandwich-type lanthanide complexes and the magnetic properties of the Er compound was studied (chapter 3.7-3.8).

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9783736976627
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1Table of contents
- TABLE OF CONTENTS
- 1. INTRODUCTION
- 1.1 Low-coordinated silicon compounds
- 1.2 Aromatic dianionic metalloles
- 1.3 Sandwich complexes
- 2. MOTIVATION AND OBJECTIVES
- 3. RESULTS AND DISCUSSION
- 3.1 Synthesis of aromatic tetrasilacyclobutadiene dications
- 3.2 Synthesis of a chiral silene and its reactivity towards small molecules
- 3.3 Rare-earth and alkaline-earth silylene complexes and their reactivities
- 3.4 Zinc and cadmium silylene complexes and their reactivities
- 3.5 Stepwise transformation of P4 by different silylenes
- 3.6 Triple-decker complexes incorporating three distinct deck architectures
- 3.7 Lanthanide germole and silole complexes
- 3.8 Synthesis and magnetic properties of lanthanide plumbole sandwichcomplexes
- 4.EXPERIMENTAL SECTION
- 4.1 General methods
- 4.2 Syntheses and analytical data
- 5. CRYSTAL STRUCTURE MEASUREMENTS
- 5.1 Data collection and refinement
- 5.2 Crystal data
- 6. SUMMARY (ZUSAMMENFASSUNG)
- 6.1 Summary
- 6.2 Zusammenfassung
- 7. REFERENCES
- 8. APPENDIX
- CURRICULUM VITAE (CV)
- CONFERENCES
- PUBLICATIONS
- ACKNOWLEDGEMENT