The Nature of Nickel Species Formed upon the Activation of α-Diimine Nickel(II) pre-Catalyst with Alkylaluminum Sesquichlorides | Sciact - CRIS-система Института катализа

The Nature of Nickel Species Formed upon the Activation of α-Diimine Nickel(II) pre-Catalyst with Alkylaluminum Sesquichlorides Научная публикация

Журнал

Journal of Organometallic Chemistry
ISSN: 0022-328X

Вых. Данные

Год: 2020, Том: 907, Номер статьи : 121063, Страниц : 6 DOI: 10.1016/j.jorganchem.2019.121063

Ключевые слова

EPR; Ethylene intermediates; Nickel; NMR; Polymerization

Авторы

Soshnikov Igor E. ^1,2 , Semikolenova Nina V. ¹ , Bryliakov Konstantin P. ^1,2 , Antonov Artem A. ^1,2 , Sun Wen-Hua ³ , Talsi Evgenii P. ^1,2

Организации

1	Boreskov Institute of Catalysis, Pr. Lavrentieva, 5, Novosibirsk, 630090, Russian Federation
2	Novosibirsk State University, Pirogova 1, Novosibirsk, 630090, Russian Federation
3	State Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China

Информация о финансировании (2)

1	Федеральное агентство научных организаций России	0303-2016-0009
2	Российский фонд фундаментальных исследований National Natural Science Foundation of China	18-53-80031 / 51861145303

The nature of nickel(II) species, formed upon the activation of α-diiminonickel pre-catalyst LNNiIIBr2 (LN = 1,2-Bis[(2,4,6-trimethylphenyl)imino]acenaphthene) with Al2Et3Cl3 and Al2Me3Cl3, has been studied using 1H and 2H NMR spectroscopy. The paramagnetic heterobinuclear ion pairs of the type [LNNiII(μ-Cl)2AlRCl]+[A]– (where R = Et or Me, [A]- = counter anion) have been observed in the catalyst systems LNNiIIBr2/Al2Et3Cl3 and LNNiIIBr2/Al2Me3Cl3. At room temperature, both ion pairs gradually transform into EPR-active complexes of Ni(I). Their possible role in ethylene polymerization is discussed. © 2019 Elsevier B.V.

Soshnikov I.E. , Semikolenova N.V. , Bryliakov K.P. , Antonov A.A. , Sun W-H. , Talsi E.P.
The Nature of Nickel Species Formed upon the Activation of α-Diimine Nickel(II) pre-Catalyst with Alkylaluminum Sesquichlorides
Journal of Organometallic Chemistry. 2020. V.907. 121063 :1-6. DOI: 10.1016/j.jorganchem.2019.121063 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	21 окт. 2019 г.
Принята к публикации:	3 дек. 2019 г.
Опубликована online:	6 дек. 2019 г.
Опубликована в печати:	1 февр. 2020 г.

Web of science:	WOS:000506406600013
Scopus:	2-s2.0-85076288458
РИНЦ:	43220225
Chemical Abstracts:	2019:2438909
OpenAlex:	W2994148722

БД	Цитирований
Scopus	11
Web of science	11
РИНЦ	10
OpenAlex	11