2-Iminopyridine Nickel(II) Complexes Bearing Electron-Withdrawing Groups in the Ligand Core: Synthesis, Characterization, Ethylene Oligo- and Polymerization Behavior | Sciact - CRIS-система Института катализа

2-Iminopyridine Nickel(II) Complexes Bearing Electron-Withdrawing Groups in the Ligand Core: Synthesis, Characterization, Ethylene Oligo- and Polymerization Behavior Научная публикация

Журнал

Journal of Organometallic Chemistry
ISSN: 0022-328X

Вых. Данные

Год: 2016, Том: 822, Страницы: 241-249 Страниц : 9 DOI: 10.1016/j.jorganchem.2016.08.031

Ключевые слова

2-iminopyridine, Ethylene, Methylaluminoxane, Nickel, Oligomerization, Polymerization

Авторы

Antonov Artem A. ^1,2 , Semikolenova Nina V. ² , Talsi Evgenii P. ^1,2 , Matsko Mikhail A. ² , Zakharov Vladimir A. ^1,2 , Bryliakov Konstantin P. ^1,2

Организации

1	Novosibirsk State University, Ul. Pirogova 2, Novosibirsk 630090, Russian Federation
2	Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russian Federation

Информация о финансировании (2)

1	Федеральное агентство научных организаций России	V.44.2.1.
2	Российский фонд фундаментальных исследований	16-53-53014

A series of novel 2-[(arylimino)alkyl]pyridine derivatives, containing electron-withdrawing groups (F, Cl, Br, CF3, NO2, CN) in the aryl rings, have been synthesized and characterized by 1H, 13C and 19F NMR spectroscopy. The corresponding nickel(II) complexes (24 complexes) have been prepared in good yields. The nature of the Ni complexes has been established by elemental analysis, paramagnetic 1H NMR and X-ray diffraction studies. Those complexes, activated with MAO, have been found to be highly active in the oligomerization and polymerization of ethylene (up to 9600 kg (mol of Ni)−1 h−1 bar−1), affording highly branched low-MW PE or ethylene oligomers, predominantly butenes and hexenes. The dependence of content and ratio of ethylene oligomers as well as of the polymer characteristics (molecular weight, degree of branching) on the nature of the substituents in the aryl(imino) and pyridine rings has been analyzed systematically. (E)-N-(1-(pyridin-2-yl)ethylidene)-2-(trifluoromethyl)aniline Ni complex supported on silica-alumina affords polyethylene with higher molecular weights, broader molecular weight distribution, and lower level of branching than the homogeneous catalyst.

Antonov A.A. , Semikolenova N.V. , Talsi E.P. , Matsko M.A. , Zakharov V.A. , Bryliakov K.P.
2-Iminopyridine Nickel(II) Complexes Bearing Electron-Withdrawing Groups in the Ligand Core: Synthesis, Characterization, Ethylene Oligo- and Polymerization Behavior
Journal of Organometallic Chemistry. 2016. V.822. P.241-249. DOI: 10.1016/j.jorganchem.2016.08.031 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	14 апр. 2016 г.
Принята к публикации:	31 авг. 2016 г.
Опубликована online:	1 сент. 2016 г.
Опубликована в печати:	1 нояб. 2016 г.

Web of science:	WOS:000385517600030
Scopus:	2-s2.0-84987652922
РИНЦ:	26672965
Chemical Abstracts:	2016:1514806
Chemical Abstracts (print):	165:448757
OpenAlex:	W2513768602

БД	Цитирований
Web of science	38
Scopus	38
РИНЦ	37
OpenAlex	37