Recent advancements in N-ligated group 4 molecular catalysts for the (co) polymerization of ethylene

SF Yuan, Y Yan, GA Solan, Y Ma, WH Sun - Coordination Chemistry …, 2020 - Elsevier
Abstract Group 4 metal (Zr, Ti, Hf) catalysts for olefin polymerization and specifically those
based on non-metallocene complexes have continued to be a subject of intense study in …

Zirconium-Based Catalysts in Organic Synthesis

L Peng, Y Zhao, T Yang, Z Tong, Z Tang, A Orita… - Topics in Current …, 2022 - Springer
Zirconium is a silvery-white malleable and ductile metal at room temperature with a crustal
abundance of 162 ppm. Its compounds, showing Lewis acidic behavior and high catalytic …

Zr (IV) Catalyst for the Ring-Opening Copolymerization of Anhydrides (A) with Epoxides (B), Oxetane (B), and Tetrahydrofurans (C) to Make ABB-and/or ABC-Poly …

RWF Kerr, CK Williams - Journal of the American Chemical …, 2022 - ACS Publications
Poly (ester-alt-ethers) can combine beneficial ether linkage flexibility and polarity with ester
linkage hydrolysability, furnishing fully degradable polymers. Despite their promising …

Cobalt-Catalyzed C(sp2)–C(sp3) Suzuki–Miyaura Cross-Coupling Enabled by Well-Defined Precatalysts with L,X-Type Ligands

LR Mills, D Gygi, JR Ludwig, EM Simmons… - ACS …, 2022 - ACS Publications
Cobalt (II) halides in combination with phenoxyimine (FI) ligands generated efficient
precatalysts in situ for the C (sp2)–C (sp3) Suzuki–Miyaura cross-coupling between alkyl …

The highly controlled and efficient polymerization of ethylene

A Goller, J Obenauf, WP Kretschmer… - Angewandte Chemie …, 2023 - Wiley Online Library
The highly controlled and efficient polymerization of ethylene is a very attractive but
challenging target. Herein we report on a Coordinative Chain Transfer Polymerization …

Norbornene Monomer Effects and Mechanistic Insights in Binuclear Nickel-Catalyzed Olefin Chain Walking Copolymerizations

B Qu, Y Zhao, P Song, Y Gao, YY Zhou, XL Sun… - ACS …, 2023 - ACS Publications
Chain walking is a unique process in late transition metal-catalyzed ethylene (α-olefin)
polymerizations and can be modulated to achieve control over polyolefin branch type …

Dinuclear group 4 metal complexes bearing anthracene-bridged bifunctional amido-ether ligands: remarkable metal effect and cooperativity toward ethylene/1-octene …

Y Xing, L Xu, S Liu, Z Li - Inorganic Chemistry, 2023 - ACS Publications
Two types of bifunctional amido-ether ligands (syn-L and anti-L) with the rigid anthracene
skeleton were designed to support dinuclear group 4 metal complexes. All organic ligands …

Development of group 4 metal complexes bearing fused-ring amido-trihydroquinoline ligands with improved high-temperature catalytic performance toward olefin (co) …

B Han, Y Liu, C Feng, S Liu, Z Li - Organometallics, 2021 - ACS Publications
The development of homogeneous metal catalysts with high activity and high thermal
stability is vital for the synthesis of polyolefin elastomers (POEs) in solution-phase olefin …

Effect of activator and outgoing ligand nature on the catalytic behavior of bis (phenoxy-imine) Ti (IV) complexes in the polymerization of ethylene and its …

SC Gagieva, KF Magomedov, VA Tuskaev… - Polymers, 2022 - mdpi.com
A series of bis (phenoxy-imine)(FI) titanium (IV) and zirconium (IV) complexes have been
synthesized. The effect of the nature of the activator (MAO, combinations EtnAlCl3-n+ …

Influence of the N–H functionality on activating O, N, N-titanium complexes and controlling polyethylene molecular weights and distributions

J Tian, Z Gao, Y Liu, P Braunstein, S Liu… - Inorganic Chemistry …, 2024 - pubs.rsc.org
The titanium trichloride complex 1-TiCl3 ((C6H5–NH–C6H4–NCH–C6H2-3, 5-tBu-2-O)
TiCl3) with the phenoxy-imine–amine (O, N, N) ligand containing an N–H group was …