The exploration and utilization of different ligands are crucial for design and development of superior catalysts and isolation of rare metal complexes. Ligands play a crucial role in stabilizing metal complexes with their diverse electronic and steric properties. Therefore, it is essential to understand metal-ligand interactions and electronic structures. Chapters 2 and 3 embark on optimizing ligand’s electronic and steric effects for accelerating titanium-catalyzed hydroamination reactions. By combining theoretical and experimental approaches, we could predict optimal ligand structures and properties for the development of new catalysts. Chapter 4 delves into mechanistic pathways for pyridine synthesis from isoxazole and enamine. Chapters 5, 6, and 7 emphasize understanding the metal-ligand interactions for isolating highly reactive and stable rare-earth metal complexes. Further, the unexpected reactivity of these complexes has led to the discovery of some intriguing and unprecedented metal complexes, enriching the field of organometallic chemistry.
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