Steric indices are parameters used in chemistry to describe the spatial arrangement of
atoms or groups of atoms in molecules. They are important in determining the reactivity …

The introduction of polar functional groups into polyolefin chain structures creates
opportunities to enhance specific properties, such as adhesion, dyeability, printability …

Stiffening of the catalyst backbone of salan-type catalyst 1via ring closure yields
indanosalan 3 and increases activity and molar mass capability by two orders of magnitude …

Group 4 metal-Salan olefin polymerization catalysts typically have relatively low activity,
being slowed down by a pre-equilibrium favoring a non-polymerization active resting state …

For [OOOO]-type catalysts, the introduction of two methyl substituents behind the active site,
at the backbone C3 linker, can substantially impact performance in propene polymerization …

We review the story of stereoselective 1-olefin polymerization with a focus on the production
of isotactic polypropylene. Starting from the visionary modeling of early TiCl 3 catalysts, this …

In the past decade, computational tools have become integral to catalyst design. They
continue to offer significant support to experimental organic synthesis and catalysis …

Internal donors (IDs) play a decisive role in shaping the structure and performance of Ziegler–
Natta catalyst formulations for isotactic polypropylene production. Unfortunately, their …

Modern “high-yield” Ziegler–Natta (HY-ZN) catalysts for the isotactic polymerization of
propene consist of MgCl2/TiCl4/electron donor/AlEt3 formulations which are much more …

A synthetic protocol to access new aminophenolate-etherphenolate ONO'O ligands is
presented. Zirconium iso-propoxide and benzyl complexes of a prototypical tert-butyl …