NMR and EPR Spectroscopic Identification of Intermediates Formed upon Activation of 8-Mesitylimino-5,6,7-trihydroquinolylnickel Dichloride with AlR2Cl (R = Me, Et) | Sciact - CRIS-система Института катализа

NMR and EPR Spectroscopic Identification of Intermediates Formed upon Activation of 8-Mesitylimino-5,6,7-trihydroquinolylnickel Dichloride with AlR2Cl (R = Me, Et) Научная публикация

Журнал

Organometallics
ISSN: 0276-7333 , E-ISSN: 1520-6041

Вых. Данные

Год: 2015, Том: 34, Номер: 13, Страницы: 3222-3227 Страниц : 5 DOI: 10.1021/acs.organomet.5b00263

Ключевые слова

Chemical activation; Electron spin resonance spectroscopy; Ethylene; Ions; Nickel

Авторы

Soshnikov Igor E. ^1,2 , Semikolenova Nina V. ¹ , Bryliakov Konstantin P. ^1,2 , Zakharov Vladimir A. ^1,2 , Sun Wen-Hua ³ , Talzi Evgenii P. ^1,2

Организации

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

Информация о финансировании (3)

1	Федеральное агентство научных организаций России	V.44.2.1.
2	Российский фонд фундаментальных исследований	14-03-91153
3	National Natural Science Foundation of China	21211120163

The intermediates formed upon activation of 8-mesitylimino-5,6,7-trihydroquinolylnickel dichloride [LNiCl2] with AlR2Cl (R = Me, Et) have been studied by 1H NMR and EPR spectroscopy. Activation of LNiCl2 with AlEt2Cl has been shown to afford diamagnetic ion pair [LNiIIEt]+[AlEt3Cl]−, whereas the use of AlMe2Cl as activator yields the paramagnetic ion pair with proposed structure [LNiII(μ-R)2AlMeCl]+[AlMe3Cl]− (R = Cl or Me). With time, both ion pairs convert to bis-ligated Ni(I) complexes with proposed structures [L2NiI]+[A]−, where [A]− = AlEt3Cl– or AlMe3Cl–, respectively. Ethylene reactivity examination reveals that ion pairs [LNiIIEt]+[AlEt3Cl]− and [LNiII(μ-R)2AlMeCl]+[AlMe3Cl]− are the closest precursors of the active species of polymerization.

Soshnikov I.E. , Semikolenova N.V. , Bryliakov K.P. , Zakharov V.A. , Sun W-H. , Talzi E.P.
NMR and EPR Spectroscopic Identification of Intermediates Formed upon Activation of 8-Mesitylimino-5,6,7-trihydroquinolylnickel Dichloride with AlR2Cl (R = Me, Et)
Organometallics. 2015. V.34. N13. P.3222-3227. DOI: 10.1021/acs.organomet.5b00263 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	27 мар. 2015 г.
Опубликована online:	25 июн. 2015 г.
Опубликована в печати:	13 июл. 2015 г.

Web of science:	WOS:000358026500017
Scopus:	2-s2.0-84953885781
РИНЦ:	26945474
Chemical Abstracts:	2015:1067592
Chemical Abstracts (print):	163:161395
OpenAlex:	W2340761940

БД	Цитирований
Web of science	23
Scopus	26
РИНЦ	25
OpenAlex	28