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Paramagnetic complexes of monovalent and trivalent nickel in the catalytic system Ni(COD)2/BF3∙ OEt2 active in norbornene polymerization

Paper ID Volume ID Publish Year Pages File Format Full-Text
51112 46830 2011 3 PDF Available
Title
Paramagnetic complexes of monovalent and trivalent nickel in the catalytic system Ni(COD)2/BF3∙ OEt2 active in norbornene polymerization
Abstract

It has been shown that the system Ni(COD)2/BF3∙ OEt2 may polymerize norbornene with the activity of 1930 kg NB/molNi h. This catalytic system is characterized by minor content of the Lewis acid; the activity peaks at the molar ratio of B:Ni = 5. The norbornene polymerization was first demonstrated to be attended with the formation of trivalent nickel metallocyclic complexes. A monovalent nickel complex was used as a precursor for the active species.

Graphical AbstractThe norbornene polymerization was first demonstrated to be attended with the formation of trivalent nickel metallocyclic complexes. A monovalent nickel complex was used as a precursor for the active species.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► Proposed atom-economic catalytic system of the norbornene addition polymerization. ► Carbocationic nickel(I) complex as a direct precursor of the active species. ► Nickel(III) complex as the active species of the norbornene polymerization.

Keywords
Monovalent nickel; Trivalent nickel; Norbornene; Polymerization; Boron trifluoride
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Paramagnetic complexes of monovalent and trivalent nickel in the catalytic system Ni(COD)2/BF3∙ OEt2 active in norbornene polymerization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 7, 10 March 2011, Pages 634–636
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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