Control of coordination polymerization behavior by counter-anionic effects
In coordination polymerization chemistry, the most active species are cationic transition
metals which bear vacant sites for monomer coordination. The steric and electronic …
metals which bear vacant sites for monomer coordination. The steric and electronic …
Rapid atom-efficient polyolefin plastics hydrogenolysis mediated by a well-defined single-site electrophilic/cationic organo-zirconium catalyst
Polyolefins comprise a major fraction of single-use plastics, yet their catalytic deconstruction/
recycling has proven challenging due to their inert saturated hydrocarbon connectivities …
recycling has proven challenging due to their inert saturated hydrocarbon connectivities …
MAO-and Borate-Free Activating Supports for Group 4 Metallocene and Post-Metallocene Catalysts of α-Olefin Polymerization and Oligomerization
IE Nifant'ev, PD Komarov, OD Kostomarova… - Polymers, 2023 - mdpi.com
Modern industry of advanced polyolefins extensively uses Group 4 metallocene and post-
metallocene catalysts. High-throughput polyolefin technologies demand the use of …
metallocene catalysts. High-throughput polyolefin technologies demand the use of …
Rapid Polyolefin Plastic Hydrogenolysis Mediated by Single-Site Heterogeneous Electrophilic/Cationic Organo-group IV Catalysts
A homologous series of cationic electrophilic group IV metal hydrides (M= Ti, Zr, Hf) created
by chemisorption of the corresponding MNp4 precursors on highly Brønsted acidic sulfated …
by chemisorption of the corresponding MNp4 precursors on highly Brønsted acidic sulfated …
Rapid Polyolefin Hydrogenolysis by a Single‐Site Organo‐Tantalum Catalyst on a Super‐Acidic Support: Structure and Mechanism
The novel electrophilic organo‐tantalum catalyst AlS/TaNpx (1)(Np= neopentyl) is prepared
by chemisorption of the alkylidene Np3Ta= CHtBu onto highly Brønsted acidic sulfated …
by chemisorption of the alkylidene Np3Ta= CHtBu onto highly Brønsted acidic sulfated …
Structural Characterization and Spatial Mapping of Active Sites on Supported Metallocene Catalysts for Olefin Polymerization: A Luminescence-based Approach
Steady-state (SS) and time-resolved (TR) fluorescence spectroscopy were applied in the
characterization of catalytically active metallocene (MCN) species, both in solution and on …
characterization of catalytically active metallocene (MCN) species, both in solution and on …
Enhanced Activity from Coordinatively Unsaturated and Dynamic Zeolite-Bound Organoscandium Species
Scandium borohydride grafted into the micropores of the faujasite zeolite HY30 catalyzes
the C–H borylation of benzene, whereas silica-grafted species are inactive. This catalytic …
the C–H borylation of benzene, whereas silica-grafted species are inactive. This catalytic …
The Overlooked Potential of Sulfated Zirconia: Reexamining Solid Superacidity Toward the Controlled Depolymerization of Polyolefins
SR Cleary, AK Starace, CC Curran-Velasco… - Langmuir, 2024 - ACS Publications
Closed-loop recycling via an efficient chemical process can help alleviate the global plastic
waste crisis. However, conventional depolymerization methods for polyolefins, which …
waste crisis. However, conventional depolymerization methods for polyolefins, which …
Facile Polyolefin Plastics Hydrogenolysis Catalyzed by a Surface Electrophilic d0 Hydride
Polyolefins comprise a major fraction of single-use plastics and yet their catalytic
deconstruction/recycling has proven challenging due to their inert hydrocarbon …
deconstruction/recycling has proven challenging due to their inert hydrocarbon …
Selective Transformations Mediated by Group 4 Metal Cyclopentadienyl Complexes
This chapter provides a brief overview of chemical transformations or syntheses mediated or
catalysed by complexes of group 4 elements containing cyclopentadienyl and related …
catalysed by complexes of group 4 elements containing cyclopentadienyl and related …