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Nature of Heterobinuclear Ni(I) Complexes Formed upon the Activation of the α-Diimine Complex LNiIIBr2 with AlMe3 and MMAO Научная публикация

Журнал Organometallics
ISSN: 0276-7333 , E-ISSN: 1520-6041
Вых. Данные Год: 2021, Том: 40, Номер: 7, Страницы: 907-914 Страниц : 8 DOI: 10.1021/acs.organomet.1c00015
Ключевые слова Electron paramagnetic resonance spectroscopy, Hydrocarbons, Aromatic compounds, Nuclear magnetic resonance spectroscopy, Resonance structures
Авторы Soshnikov Igor E. 1 , Semikolenova Nina V. 1 , Bryliakov Konstantin P. 1 , Antonov Artem A. 1 , Sun Wen-Hua 2 , Talsi Evgenii P. 1
Организации
1 Boreskov Institute of Catalysis, 630090, Novosibirsk, Pr. Lavrentieva, 5, Russian Federation
2 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 Российский фонд фундаментальных исследований
National Natural Science Foundation of China 		18-53-80031 / 51861145303
2 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 0239-2021-0004

Реферат: The nature of Ni(I) species formed upon the activation of the N,N-α-diimine Ni(II) ethylene polymerization precatalyst LNiIIBr2 (1) with AlMe3 and MMAO has been studied in detail by 1H, 2H NMR, and electron paramagnetic resonance (EPR) spectroscopy (L = 1,4-bis(2,6-diisopropylphenyl)-2,3-dimethyl-1,4-diazabuta-1,3-diene). It has been shown that neutral paramagnetic NMR and EPR active heterobinuclear complexes of types LNiI(μ-Me)(μ-Br)AlR2 and LNiI(μ-Me)2AlR2 (R = Me in the case of AlMe3 and R = Me or iBu in the case of MMAO) predominate in toluene solutions of 1/AlMe3 and 1/MMAO at room temperature. The effect of the cocatalyst/catalyst ratio on the relative concentrations of LNiI(μ-Me)(μ-Br)AlR2 and LNiI(μ-Me)2AlR2 has been studied and their role in ethylene polymerization is discussed.
Библиографическая ссылка: Soshnikov I.E. , Semikolenova N.V. , Bryliakov K.P. , Antonov A.A. , Sun W-H. , Talsi E.P.
Nature of Heterobinuclear Ni(I) Complexes Formed upon the Activation of the α-Diimine Complex LNiIIBr2 with AlMe3 and MMAO
Organometallics. 2021. V.40. N7. P.907-914. DOI: 10.1021/acs.organomet.1c00015 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 11 янв. 2021 г.
Опубликована online: 22 мар. 2021 г.
Опубликована в печати: 12 апр. 2021 г.
Идентификаторы БД:
Web of science: WOS:000640312300011
Scopus: 2-s2.0-85104954179
РИНЦ: 46029077
Chemical Abstracts: 2021:677618
OpenAlex: W3137700134
Цитирование в БД:
БД Цитирований
Scopus 7
Web of science 6
РИНЦ 4
OpenAlex 6
Альметрики: