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An aniline-bridged bis (pyrazolyl)alkane ligand for dizinc-catalysed ring-opening polymerization

https://doi.org/10.1039/D4DT02837F

Naik, Pratyush K; Gu, Zipeng; Comito, Robert J (November 2024, Dalton Transactions)

We report the first binucleating aniline ligand (1), and compare its dizinc complexes to analogous phenolate complexes both structurally and in ring-opening polymerizaion catalysis.
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Free, publicly-accessible full text available November 5, 2025
Gas-Phase Ethylene Polymerization by Single-Site Cr Centers in a Metal–Organic Framework

https://doi.org/10.1021/acscatal.9b03282

Park, Hoyoung D.; Comito, Robert J.; Wu, Zhenwei; Zhang, Guanghui; Ricke, Nathan; Sun, Chenyue; Van Voorhis, Troy; Miller, Jeffrey T.; Román-Leshkov, Yuriy; Dincă, Mircea (March 2020, ACS Catalysis)

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Highly Selective Heterogeneous Ethylene Dimerization with a Scalable and Chemically Robust MOF Catalyst

https://doi.org/10.1021/acssuschemeng.8b05703

Metzger, Eric D.; Comito, Robert J.; Wu, Zhenwei; Zhang, Guanghui; Dubey, Romain C.; Xu, Wei; Miller, Jeffrey T.; Dincă, Mircea (April 2019, ACS Sustainable Chemistry & Engineering)

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A Structural Mimic of Carbonic Anhydrase in a Metal-Organic Framework

https://doi.org/10.1016/j.chempr.2018.09.011

Wright, Ashley M.; Wu, Zhenwei; Zhang, Guanghui; Mancuso, Jenna L.; Comito, Robert J.; Day, Robert W.; Hendon, Christopher H.; Miller, Jeffrey T.; Dincă, Mircea (December 2018, Chem)

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Stabilized Vanadium Catalyst for Olefin Polymerization by Site Isolation in a Metal–Organic Framework

https://doi.org/10.1002/ange.201803642

Comito, Robert J.; Wu, Zhenwei; Zhang, Guanghui; Lawrence, III, John A.; Korzyński, Maciej D.; Kehl, Jeffrey A.; Miller, Jeffrey T.; Dincă, Mircea (May 2018, Angewandte Chemie)

Abstract Vanadium catalysts offer unique selectivity in olefin polymerization, yet are underutilized industrially owing to their poor stability and productivity. Reported here is the immobilization of vanadium by cation exchange in MFU‐4l, thus providing a metal–organic framework (MOF) with vanadium in a molecule‐like coordination environment. This material forms a single‐site heterogeneous catalyst with methylaluminoxane and provides polyethylene with low polydispersity (PDI≈3) and the highest activity (up to 148 000 h⁻¹) reported for a MOF‐based polymerization catalyst. Furthermore, polyethylene is obtained as a free‐flowing powder as desired industrially. Finally, the catalyst shows good structural integrity and retains polymerization activity for over 24 hours, both promising attributes for the commercialization of vanadium‐based polyolefins.
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