Skip to main content

Research Repository

Advanced Search

2-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-chlorophenylimino} -3-aryliminobutylnickel(II) bromide complexes: Synthesis, characterization, and investigation of their catalytic behavior

Liu, Qingyun; Zhang, Wenjuan; Jia, Dedong; Hao, Xiang; Redshaw, Carl; Sun, Wen-Hua

Authors

Qingyun Liu

Wenjuan Zhang

Dedong Jia

Xiang Hao

Profile Image

Professor Carl Redshaw C.Redshaw@hull.ac.uk
Professor of Inorganic Materials Chemistry and REF Lead for Chemistry

Wen-Hua Sun



Abstract

The series of 2-{2,6-bis[di(4-fluorophenyl)methyl]-4-chlorophenylimino}-3- aryliminobutane derivatives (L1-L5) and their nickel(II) dibromide complexes (Ni1-Ni5) were synthesized, and all organic compounds were fully characterized by the Fourier transform infrared (FT-IR) and nuclear magnetic resonance (NMR) spectroscopy and by elemental analysis, while the nickel complexes were characterized by FT-IR spectroscopy, elemental analysis, as well as by single-crystal X-ray diffraction for two representative examples, namely Ni1 and Ni4. A distorted tetrahedral geometry was observed for these four-coordinate nickel complexes. Upon the activation with either Methylaluminoxane or modified methylaluminoxane as co-catalyst, all nickel complex precatalysts showed very high activity toward ethylene polymerization with activities of up to 10 7 g(PE)·mol -1 (Ni)·h -1 , and afforded highly branched polyethylene with a bimodal distribution. © 2014 Elsevier B.V.

Citation

Liu, Q., Zhang, W., Jia, D., Hao, X., Redshaw, C., & Sun, W. (2014). 2-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-chlorophenylimino} -3-aryliminobutylnickel(II) bromide complexes: Synthesis, characterization, and investigation of their catalytic behavior. Applied catalysis. A, General, 475(April), (195-202). doi:10.1016/j.apcata.2014.01.034. ISSN 0926-860X

Journal Article Type Article
Acceptance Date Jan 16, 2014
Online Publication Date Jan 24, 2014
Publication Date Apr 5, 2014
Deposit Date Jun 24, 2015
Publicly Available Date Jun 24, 2015
Journal Applied catalysis A : general
Print ISSN 0926-860X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 475
Issue April
Pages 195-202
DOI https://doi.org/10.1016/j.apcata.2014.01.034
Keywords α-Diiminonickel complex, Bulky unsymmetrical 2,3-diiminobutane, Ethylene polymerization, Highly branched polyethylene
Public URL https://hull-repository.worktribe.com/output/375753
Publisher URL http://www.sciencedirect.com/science/article/pii/S0926860X14000404
Copyright Statement © 2014, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Additional Information Author's accepted manuscript of article published in: Applied catalysis A : general, 2014, v.475, April.

Files

Article.pdf (385 Kb)
PDF

Publisher Licence URL
http://creativecommons.org/licenses/by-nc-nd/4.0/

Copyright Statement
© 2014, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/



You might also like



Downloadable Citations