Substituent Effects in (k2-N,O)-Salicylaldiminato Nickel(II)-Methyl Pyridine Polymerization Catalysts : Terphenyls Controlling Polyethylene Microstructures

Göttker-Schnetmann, Inigo; Wehrmann, Peter; Röhr, Caroline; Mecking, Stefan

Substituent Effects in (k2-N,O)-Salicylaldiminato Nickel(II)-Methyl Pyridine Polymerization Catalysts : Terphenyls Controlling Polyethylene Microstructures

Dateien

Substituent_Effects_in.pdfGröße: 376.18 KBDownloads: 474

Supporting_Information_Substituent_Effects_in.pdfGröße: 670.67 KBDownloads: 506

Datum

2007

Autor:innen

Göttker-Schnetmann, Inigo

Wehrmann, Peter

Röhr, Caroline

Mecking, Stefan

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Chemie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Organometallics. 2007, 26(9), pp. 2348-2362. ISSN 0276-7333. eISSN 1520-6041. Available under: doi: 10.1021/om0611498

Zusammenfassung

A series of (k2-N,O)-salicylaldiminato Ni(II)-methyl pyridine complexes 7-pyr and 8-pyr derived from 3,5-diiodosalicyaldehyde (3a) and 3-(9-anthryl)salicylaldehyde (3b), and terphenylamines 2,6-(3,5- R-4-R-C6H2)2C6H3-NH2 (4a, R=CF3, R'= H; 4b, R=tBu, R'=H; 4c, R=tBu, R'=OH; 4d, R=Me, R'=H; 4e, R=Me, R'=MeO; 4f, R=MeO, R'=H; 4g, R=MeO, R'=MeO), was prepared by reaction of the respective salicylaldimine (5a-f, 6a-g) with [(tmeda)Ni(CH3)2] (tmeda) N,N,N,N-tetramethylethylenediamine) or [(pyridine)2Ni(CH3)2]. Complexes 7-pyr and 8-pyr are highly active single component catalysts for the polymerization of ethylene, producing a wide range of different polyethylene microstructures. While comparable complexes derived from 3a, 3b, 5-nitrosalicylaldehyde, 3-tertbutylsalicylaldehyde,3,5-[3,5-(CF3)2C6H3]2-salicylaldehyde, and 2,6-[3,5-(CF3)2C6H3]2C6H3-NH2 afford polyethylenes with similar degrees of branching, variation of the terphenyl moieties in complexes 7-pyr and 8-pyr allows access to a wide range of polyethylene microstructures under identical reaction conditions. The X-ray diffraction analyses of complexes 7b-pyr and 8f-pyr are reported.

Fachgebiet (DDC)

540 Chemie

Zitieren

ISO 690

GÖTTKER-SCHNETMANN, Inigo, Peter WEHRMANN, Caroline RÖHR, Stefan MECKING, 2007. Substituent Effects in (k2-N,O)-Salicylaldiminato Nickel(II)-Methyl Pyridine Polymerization Catalysts : Terphenyls Controlling Polyethylene Microstructures. In: Organometallics. 2007, 26(9), pp. 2348-2362. ISSN 0276-7333. eISSN 1520-6041. Available under: doi: 10.1021/om0611498

BibTex

@article{GottkerSchnetmann2007Subst-9696,
  year={2007},
  doi={10.1021/om0611498},
  title={Substituent Effects in (k2-N,O)-Salicylaldiminato Nickel(II)-Methyl Pyridine Polymerization Catalysts : Terphenyls Controlling Polyethylene Microstructures},
  number={9},
  volume={26},
  issn={0276-7333},
  journal={Organometallics},
  pages={2348--2362},
  author={Göttker-Schnetmann, Inigo and Wehrmann, Peter and Röhr, Caroline and Mecking, Stefan}
}

RDF

<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/9696">
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9696/1/Substituent_Effects_in.pdf"/>
    <dcterms:title>Substituent Effects in (k2-N,O)-Salicylaldiminato Nickel(II)-Methyl Pyridine Polymerization Catalysts : Terphenyls Controlling Polyethylene Microstructures</dcterms:title>
    <dc:creator>Wehrmann, Peter</dc:creator>
    <dc:contributor>Wehrmann, Peter</dc:contributor>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9696/2/Supporting_Information_Substituent_Effects_in.pdf"/>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:13:46Z</dc:date>
    <dc:creator>Röhr, Caroline</dc:creator>
    <dc:creator>Mecking, Stefan</dc:creator>
    <dc:contributor>Mecking, Stefan</dc:contributor>
    <dcterms:issued>2007</dcterms:issued>
    <dc:language>eng</dc:language>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/9696"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9696/1/Substituent_Effects_in.pdf"/>
    <dc:contributor>Göttker-Schnetmann, Inigo</dc:contributor>
    <dc:creator>Göttker-Schnetmann, Inigo</dc:creator>
    <dc:contributor>Röhr, Caroline</dc:contributor>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/9696/2/Supporting_Information_Substituent_Effects_in.pdf"/>
    <dc:format>application/pdf</dc:format>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:bibliographicCitation>First publ. in: Organometallics ; 26 (2007), 9. - S. 2348-2362</dcterms:bibliographicCitation>
    <dcterms:abstract xml:lang="eng">A series of (k2-N,O)-salicylaldiminato Ni(II)-methyl pyridine complexes 7-pyr and 8-pyr derived from 3,5-diiodosalicyaldehyde (3a) and 3-(9-anthryl)salicylaldehyde (3b), and terphenylamines 2,6-(3,5- R-4-R-C6H2)2C6H3-NH2 (4a, R=CF3, R'= H; 4b, R=tBu, R'=H; 4c, R=tBu, R'=OH; 4d, R=Me, R'=H; 4e, R=Me, R'=MeO; 4f, R=MeO, R'=H; 4g, R=MeO, R'=MeO), was prepared by reaction of the respective salicylaldimine (5a-f, 6a-g) with [(tmeda)Ni(CH3)2] (tmeda) N,N,N,N-tetramethylethylenediamine) or [(pyridine)2Ni(CH3)2]. Complexes 7-pyr and 8-pyr are highly active single component catalysts for the polymerization of ethylene, producing a wide range of different polyethylene microstructures. While comparable complexes derived from 3a, 3b, 5-nitrosalicylaldehyde, 3-tertbutylsalicylaldehyde,3,5-[3,5-(CF3)2C6H3]2-salicylaldehyde, and 2,6-[3,5-(CF3)2C6H3]2C6H3-NH2 afford polyethylenes with similar degrees of branching, variation of the terphenyl moieties in complexes 7-pyr and 8-pyr allows access to a wide range of polyethylene microstructures under identical reaction conditions. The X-ray diffraction analyses of complexes 7b-pyr and 8f-pyr are reported.</dcterms:abstract>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja