Modulation of 2-imino-6,7-dihydroquinlin-8(5H)-imine-iron ethylene polymerization catalysts through (cyclo)alkyl, benzhydryl and halide substitution

Randi Zhang, Yanping Ma, Gregory A. Solan, Yizhou Wang, Jiahao Gao, Tongling Liang and Wen-Hua Sun

RSC Adv., 2025, 15, 35055
DOI: 10.1039/D5RA06630A

Unimodal polyethylenes of high linearity and narrow dispersity by using ortho-4,4′-dichlorobenzhydryl-modified bis(imino)pyridyl-iron catalysts

Tian Liu, Yanping Ma, Gregory A. Solan, Yang Sun and Wen-Hua Sun

New J. Chem., 2023, 47, 5786
DOI: 10.1039/D2NJ06212G

Achieving polydispersive HDPE byN,N,N-Co precatalysts appended withN-2,4-bis(di(4-methoxyphenyl)methyl)-6-methylphenyl

Shi-Fang Yuan, Zhe Fan, Yi Yan, Yanping Ma, Mingyang Han, Tongling Liang and Wen-Hua Sun

RSC Adv., 2020, 10, 43400
DOI: 10.1039/D0RA09333E

Bis(imino)-6,7-dihydro-5H-quinoline-cobalt complexes as highly active catalysts for the formation of vinyl-terminated PE waxes; steps towards inhibiting deactivation pathways through targeted ligand design

Mingyang Han, Zheng Zuo, Yanping Ma, Gregory A. Solan, Xinquan Hu, Tongling Liang and Wen-Hua Sun

RSC Adv., 2021, 11, 39869
DOI: 10.1039/D1RA07279J

Chromium complexes supported by NNO-tridentate ligands: an unprecedented activity with the requirement of a small amount of MAO

Jiliang Tian, Xingwang Zhang, Shaofeng Liu and Zhibo Li

Polym. Chem., 2022, 13, 1852
DOI: 10.1039/D2PY00125J

Doubly fused N,N,N-iron ethylene polymerization catalysts appended with fluoride substituents; probing catalytic performance via a combined experimental and MLR study

Qiuyue Zhang, Wenhong Yang, Zheng Wang, Gregory A. Solan, Tongling Liang and Wen-Hua Sun

Catal. Sci. Technol., 2021, 11, 4605
DOI: 10.1039/D1CY00821H

Fluorinated cobalt catalysts and their use in forming narrowly dispersed polyethylene waxes of high linearity and incorporating vinyl functionality

Qiuyue Zhang, Zilong Li, Mingyang Han, Junfeng Xiang, Gregory A. Solan, Yanping Ma, Tongling Liang and Wen-Hua Sun

Catal. Sci. Technol., 2021, 11, 656
DOI: 10.1039/D0CY01917H

A tridentate phenoxy-phosphine (POP) divalent chromium complex and its reactivities in olefin polymerization

Li Ji, Ping Song, Youyun Zhou, Xiu-Li Sun, Yanshan Gao and Yong Tang

Polym. Chem., 2023, 14, 763
DOI: 10.1039/D2PY01509A

Adjusting Ortho-Cycloalkyl Ring Size in a Cycloheptyl-Fused N,N,N-Iron Catalyst as Means to Control Catalytic Activity and Polyethylene Properties

Mingyang Han, Qiuyue Zhang, Ivan I. Oleynik, Hongyi Suo, Irina V. Oleynik, Gregory A. Solan, Yanping Ma, Tongling Liang and Wen-Hua Sun

Catalysts, 2020, 10, 1002
DOI: 10.3390/catal10091002

Nitro and 4,4′-flourobenzhydryl functionalized bis(imino)pyridine-cobalt complexes for high molecular weight linear polyethylenes

Desalegn Demise Sage, Qiuyue Zhang, Qaiser Mahmood, Yanping Ma, Ming Liu, Xiang Hao and Wen-Hua Sun

Polymer, 2023, 285, 126384
DOI: 10.1016/j.polymer.2023.126384

α,α'‐Bis (imino)‐2,3:5,6‐bis (pentamethylene)pyridines appended with benzhydryl and cycloalkyl substituents: Probing their effectiveness as tunable N,N,N‐supports for cobalt ethylene polymerization catalysts

Mingyang Han, Ivan I. Oleynik, Yanping Ma, Irina V. Oleynik, Gregory A. Solan, Tongling Liang and Wen‐Hua Sun

Applied Organom Chemis, 2021, 35
DOI: 10.1002/aoc.6429

Fluorinated PEEK and XLPE as Promising Insulation Candidates for the Propulsion System of All-electric Aircraft

Yunqi Xing, Yuanyuan Chen, Yang Yang, Davide Fabiani, Giovanni Mazzanti, Yunlong Zi and Chuanyang Li

IEEE Trans. Dielect. Electr. Insul., 2022, 1
DOI: 10.1109/TDEI.2022.3157899

6-Arylimino-2-(2-(1-phenylethyl)naphthalen-1-yl)-iminopyridylmetal (Fe and Co) Complexes as Highly Active Precatalysts for Ethylene Polymerization: Influence of Metal and/or Substituents on the Active, Thermostable Performance of Their Complexes and Resultant Polyethylenes

Wenhua Lin, Liping Zhang, Jiahao Gao, Qiuyue Zhang, Yanping Ma, Hua Liu and Wen-Hua Sun

Molecules, 2020, 25, 4244
DOI: 10.3390/molecules25184244

Modulating Thermostability and Productivity of Benzhydryl‐Substituted Bis(imino)pyridine‐Iron C2H4 Polymerization Catalysts through ortho‐CnH2n−1 (n=5, 6, 8, 12) Ring Size Adjustment

Mingyang Han, Ivan I. Oleynik, Yanping Ma, Irina V. Oleynik, Gregory A. Solan, Xiang Hao and Wen‐Hua Sun

Eur J Inorg Chem, 2022, 2022
DOI: 10.1002/ejic.202200224

Enhanced Activity and Thermal Stability of Hydroxyl‐Modified Bis(imino)pyridylcobalt Catalysts for Ethylene Polymerization

Qiuyu Li, Shuangshuang Liu, Qaiser Mahmood, Zhixin Yu, Xinyu Wang, Ran Zhang, Yizhou Wang, Geng Ren and Wen‐Hua Sun

ChemPlusChem, 2025, 90
DOI: 10.1002/cplu.202500315

High Temperature Iron Ethylene Polymerization Catalysts Bearing N, N, N′-2-(1-(2,4-Dibenzhydryl-6-fluorophenylimino)ethyl)-6-(1-(arylphenylimino)ethyl)pyridines

Chantsalnyam Bariashir, Qiu-Yue Zhang, Bayasgalan Ulambayar, Gregory A. Solan, Tong-Ling Liang and Wen-Hua Sun

Chin J Polym Sci, 2024, 42, 188
DOI: 10.1007/s10118-023-3037-9

Fluorinated bis(arylimino)‐6,7‐dihydro‐5H‐quinoline‐cobalt polymerization catalysts: Electronic versus steric modulation in the formation of vinyl‐terminated linear PE waxes

Zheng Zuo, Mingyang Han, Yanping Ma, Gregory A. Solan, Xinquan Hu, Tongling Liang and Wen‐Hua Sun

Applied Organom Chemis, 2022, 36
DOI: 10.1002/aoc.6500

Achieving Linear α-Macro-olefins in Ethylene Polymerization through Precisely Tuned Bis(imino)pyridylcobalt Precatalysts with Steric and Electronic Parameters

Kainat Fatima Tahir, Yanping Ma, Qaiser Mahmood, Geng Ren, Areej Khalid, Yizhou Wang, Song Zou, Tongling Liang and Wen-Hua Sun

Precision Chemistry, 2024, 2, 655
DOI: 10.1021/prechem.4c00067

Integrating Ring‐Size Adjustable Cycloalkyl and Benzhydryl Groups as the Steric Protection in Bis(arylimino)trihydroquinoline‐Cobalt Catalysts for Ethylene Polymerization

Randi Zhang, Irina V. Oleynik, Jianqing Li, Gregory A. Solan, Yanping Ma, Liqun Jin, Ivan I. Oleynik, Xinquan Hu and Wen‐Hua Sun

Eur J Inorg Chem, 2021, 2021, 3956
DOI: 10.1002/ejic.202100573

Effect of chloride substitution on the performance of a benzhydryl-substituted bis(arylimino)pyridyl–cobalt ethylene polymerization catalyst

Tian Liu, Yanping Ma, Gregory A. Solan, Jiahao Gao, Qiuyue Zhang, Tongling Liang and Wen-Hua Sun

Comptes Rendus. Chimie, 2025, 28, 771
DOI: 10.5802/crchim.422

Ring size enlargement in an ortho‐cycloalkyl‐substituted bis(imino)pyridine‐cobalt ethylene polymerization catalyst and its impact on performance and polymer properties

Mingyang Han, Ivan I. Oleynik, Ming Liu, Yanping Ma, Irina V. Oleynik, Gregory A. Solan, Tongling Liang and Wen‐Hua Sun

Applied Organom Chemis, 2022, 36
DOI: 10.1002/aoc.6529

Exploring Long Range para-Phenyl Effects in Unsymmetrically Fused bis(imino)pyridine-Cobalt Ethylene Polymerization Catalysts

Yizhou Wang, Zheng Wang, Qiuyue Zhang, Song Zou, Yanping Ma, Gregory A. Solan, Wenjuan Zhang and Wen-Hua Sun

Catalysts, 2023, 13, 1387
DOI: 10.3390/catal13101387

2-(Arylimino)benzylidene-8-arylimino-5,6,7-trihydroquinoline Cobalt(II) Dichloride Polymerization Catalysts for Polyethylenes with Narrow Polydispersity

Zheng Zuo, Qiuyue Zhang, Mingyang Han, Ming Liu, Yang Sun, Yanping Ma and Wen-Hua Sun

Catalysts, 2022, 12, 1119
DOI: 10.3390/catal12101119

Catalytic oligomerization and polymerization of ethylene with complexes of iron triad metals: influence of metal nature and new prospects

S. V. Zubkevich, V. A. Tuskaev, S. Ch. Gagieva and B. M. Bulychev

RUSS CHEM REV, 2022, 91, RCR5021
DOI: 10.1070/RCR5021

Amino‐containing α‐Diimine Nickel Complexes with Adjustable Electronic Properties and their Effective Use in Forming Highly Branched Polyethylene

Qiuyue Zhang, Quanchao Wang, Yizhou Wang, Ali Muhammad Ashfaq, Yanping Ma, Tongling Liang and Wen‐Hua Sun

Macro Chemistry & Physics, 2024, 225
DOI: 10.1002/macp.202400169

Highly active and thermostable camphyl α‐diimine–nickel(II) catalysts for ethylene polymerization: Effects of N‐aryl substituting groups on catalytic properties and branching structures of polyethylene

Qiuyue Zhang, Ming Liu, Yanping Ma, Zhibin Ye, Tongling Liang and Wen‐Hua Sun

Applied Organom Chemis, 2022, 36
DOI: 10.1002/aoc.6606

Investigating the Effects of Para-methoxy Substitution in Sterically Enhanced Unsymmetrical Bis(arylimino)pyridine-cobalt Ethylene Polymerization Catalysts

Yi Yan, Shi-Fang Yuan, Ming Liu, Gregory A. Solan, Yan-Ping Ma, Tong-Ling Liang and Wen-Hua Sun

Chin J Polym Sci, 2022, 40, 266
DOI: 10.1007/s10118-022-2670-z

Naphthalenyl‐Substituted α,α′‐Bisimino‐2,3 : 5,6‐Bis(pentamethylene)pyridines as Thermally Robust Supports for Iron Ethylene Polymerization Catalysts

Wenhua Lin, Liping Zhang, Gregory A. Solan, Yanping Ma, Tongling Liang and Wen‐Hua Sun

Eur J Inorg Chem, 2021, 2021, 4530
DOI: 10.1002/ejic.202100595

Hafnium and Zirconium Complexes Bearing SNN-Ligands Enhancing Catalytic Performances toward Ethylene/1-Octene Copolymerization

Yanjun Chen, Shengmei Zhou, Weiqun Yang and Shaofeng Liu

Organometallics, 2022, 41, 3724
DOI: 10.1021/acs.organomet.2c00485

CF3O-Functionalized Bis(arylimino)pyridine–Cobalt Ethylene Polymerization Catalysts: Harnessing Solvent Effects on Performance and Polymer Properties

Ming Liu, Shu Jiang, Yanping Ma, Gregory A. Solan, Yang Sun and Wen-Hua Sun

Organometallics, 2022, 41, 3237
DOI: 10.1021/acs.organomet.2c00252

Cobalt Catalysts Bearing ortho‐(4,4′‐Dichlorobenzhydryl) Substituents and Their Use in Generating Narrowly Dispersed Polyethylene of High Linearity

Tian Liu, Ming Liu, Yanping Ma, Gregory A. Solan, Tongling Liang and Wen‐Hua Sun

Eur J Inorg Chem, 2022, 2022
DOI: 10.1002/ejic.202200396

Flexible amine-imine nickel catalysts for direct production of low-branched polyethylene waxes via ethylene polymerization

Chuangao Zhu, Xinyue Yang, Mengyao Zhang, Hui Wang, Jian Liu and Jianjian Dai

Journal of Organometallic Chemistry, 2026, 1049, 124054
DOI: 10.1016/j.jorganchem.2026.124054

Boosting activity, thermostability, and lifetime of iron ethylene polymerization catalysts through gem‐dimethyl substitution and incorporation of ortho‐cycloalkyl substituents

Randi Zhang, Mingyang Han, Irina V. Oleynik, Gregory A. Solan, Ivan I. Oleynik, Yanping Ma, Tongling Liang and Wen‐Hua Sun

Applied Organom Chemis, 2021, 35
DOI: 10.1002/aoc.6376

Enhancing Ethylene Polymerization of NNN-Cobalt(II) Precatalysts Adorned with a Fluoro-substituent

Chantsalnyam Bariashir, Randi Zhang, Arumugam Vignesh, Yanping Ma, Tongling Liang and Wen-Hua Sun

ACS Omega, 2021, 6, 4448
DOI: 10.1021/acsomega.0c05916

Unifying Molecular Weights of Highly Linear Polyethylene Waxes through Unsymmetrical 2,4-Bis(imino)pyridylchromium Chlorides

Badral Gansukh, Qiuyue Zhang, Chantsalnyam Bariashir, Arumugam Vignesh, Yanping Ma, Tongling Liang and Wen-Hua Sun

Molecules, 2020, 25, 5584
DOI: 10.3390/molecules25235584