Post metallocene catalysts are a class of catalysts that have emerged after the discovery and development of traditional metallocene catalysts. These catalysts are designed to overcome some of the limitations of metallocenes, such as their tendency to produce polymers with narrow molecular weight distributions and their limited ability to control polymer microstructure. Post metallocene catalysts often involve non-cyclopentadienyl ligands and can include a variety of other ligands, such as nitrogen, oxygen, or sulfur-based ligands.
