Copolymerization of Ethylene with Selected Vinyl Monomers Catalyzed by Group 4 Metal and Vanadium Complexes with Multidentate Ligands: A Short Review

This paper gives a short overview of homogeneous post-metallocene catalysts based on group 4 metal and vanadium complexes bearing multidentate ligands. It summarizes the catalytic behavior of those catalysts in copolymerization of ethylene with 1-olefins, with styrenic monomers and with a,w‑alkenols. The review is focused on finding correlations between the structure of a complex, its catalyst activity and comonomer incorporation ability, as well as the microstructure of the copolymer chains.

Synthesis of Novel Chiral Phenanthroline Ligands and Copper Complex

A novel class of chiral multidentate ligands have been designed and synthesized from the highly important classic ligand 1,10-phenanthroline (phen) and amino acids. The ligands were proven to be able to coordinate with copper ion by forming a novel chiral copper complex, the structure of which was determined by single crystal X-ray diffraction.