DescriptionSupramolecular metallopolymers are generally synthesized by the self-assembly polymerization of ditopic ligands through metal-ligand binding, which is a reversible process in many cases. Supramolecular metallopolymers can provide a strong impact in polymer chemistry and materials science because of the diverse applications in self-healing, optical, electronic, and magnetic materials. The Jäkle group has recently introduced the first examples of tris(2-pyridyl)borates (Tpyb) as a new class of tridentate ligands. These new “scorpionate”-type ligands are promising because of their anticipated strong coordinating ability toward main group and transition metals, the chemical tunability, and the high stability in comparison to commonly used tris(2-pyrazolylborate)s. In addition to that, the negative charge of the tridentate ligand results in neutral complexes with metal (II) ions, which contrasts the behavior of widely used terpyridine ligands. Based on these considerations, numerous applications in the fields of materials chemistry and catalysis are anticipated. However, these scorpionate type ligands have not yet been studied in supramolecular chemistry. Therefore, this thesis is focused on the development of second generation tris(2-pyridyl)borate (Tpyb) ligands, where our aim is to utilize these ligands as new building blocks in the generation of supramolecular metallopolymers. The synthesis, characterization and metal complexation behavior of this new class of ligands will be discussed in this thesis. Tpyb ligands that contain additional functional groups X such as silyl and iodo groups are described. The structures of all the ligands were confirmed by multinuclear NMR spectroscopy, high-resolution MALDI mass spectrometry, and single crystal X-ray crystallography. The corresponding metal complexes (Tpyb)2M (M = Fe, Ru) were prepared and characterized by multinuclear NMR spectroscopy, and high-resolution MALDI mass spectrometry. The properties of these metal complexes were further studied by cyclic voltammetry (CV) and UV-vis spectroscopy. Finally, a fluorene-based bitopic derivate is presented as a building block for functional metal-containing polymers.