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Article: Crystallographic revelation of the role of AIMe3 (in MAO) in Cr [NNN] pyrazolyl catalyzed ethylene trimerization

TitleCrystallographic revelation of the role of AIMe3 (in MAO) in Cr [NNN] pyrazolyl catalyzed ethylene trimerization
Authors
Issue Date2009
Citation
Organometallics, 2009, v. 28, n. 10, p. 2935-2937 How to Cite?
AbstractA series of Cr-Al intermetallic complexes, viz. [(Pź3CH) 2Cr11 2(μ-Cl)2]2 + 2[(Me2XAl)(μ-Cl)(Me2XAl)]- (X = Me/Cl), Pź3CHCr111MeCl(Ii-Cl)(AlMe2X) (X = Me/Cl), and Pź2CHCH2(μ-N)CH 2(μ-Ph)Cr111Cl(μ-Cl)AlMe2, have been isolated from the reactions of CrCl3(NNN) (NNN = tridentate pyrazolyl ligand) with neat AlMe3 or commercial MAO solutions. The products generally show high activity and selectivity in ethylene trimerization. Crystallographic analysis has provided structural evidence for Cr(III) reduction by residual AlMe3 in a mixture containing the "real" activator (MAO) as well as other transformations: viz., adduct formation, methylation, canonization, halide abstraction, N-H deprotonation, and C-H cleavage of an unactivated arene. © 2009 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/219822
ISSN
2015 Impact Factor: 4.186
2015 SCImago Journal Rankings: 2.043

 

DC FieldValueLanguage
dc.contributor.authorZhang, Jun-
dc.contributor.authorLi, Aifang-
dc.contributor.authorHor, T. S Andy-
dc.date.accessioned2015-09-23T02:58:02Z-
dc.date.available2015-09-23T02:58:02Z-
dc.date.issued2009-
dc.identifier.citationOrganometallics, 2009, v. 28, n. 10, p. 2935-2937-
dc.identifier.issn0276-7333-
dc.identifier.urihttp://hdl.handle.net/10722/219822-
dc.description.abstractA series of Cr-Al intermetallic complexes, viz. [(Pź3CH) 2Cr11 2(μ-Cl)2]2 + 2[(Me2XAl)(μ-Cl)(Me2XAl)]- (X = Me/Cl), Pź3CHCr111MeCl(Ii-Cl)(AlMe2X) (X = Me/Cl), and Pź2CHCH2(μ-N)CH 2(μ-Ph)Cr111Cl(μ-Cl)AlMe2, have been isolated from the reactions of CrCl3(NNN) (NNN = tridentate pyrazolyl ligand) with neat AlMe3 or commercial MAO solutions. The products generally show high activity and selectivity in ethylene trimerization. Crystallographic analysis has provided structural evidence for Cr(III) reduction by residual AlMe3 in a mixture containing the "real" activator (MAO) as well as other transformations: viz., adduct formation, methylation, canonization, halide abstraction, N-H deprotonation, and C-H cleavage of an unactivated arene. © 2009 American Chemical Society.-
dc.languageeng-
dc.relation.ispartofOrganometallics-
dc.titleCrystallographic revelation of the role of AIMe3 (in MAO) in Cr [NNN] pyrazolyl catalyzed ethylene trimerization-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1021/om9002347-
dc.identifier.scopuseid_2-s2.0-66249122773-
dc.identifier.volume28-
dc.identifier.issue10-
dc.identifier.spage2935-
dc.identifier.epage2937-

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