Publikation:

Siloxyaluminum alkyl cations : syntheses, structures, and reactions related to activation of zirconocene catalysts on silica gel surfaces

Vorschaubild

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2003

Autor:innen

Wrobel, Olaf
Schaper, Frank
Wieser, Ulrich
Gregorius, Heike

Herausgeber:innen

Kontakt

ISSN der Zeitschrift

Electronic ISSN

ISBN

Bibliografische Daten

Verlag

Schriftenreihe

Auflagebezeichnung

URI (zitierfähiger Link)
http://nbn-resolving.de/urn:nbn:de:bsz:352-237277
DOI (zitierfähiger Link)
https://doi.org/10.1021/om0207515
ArXiv-ID

Internationale Patentnummer

Angaben zur Forschungsförderung

Projekt

Open Access-Veröffentlichung

Sammlungen

Chemie: Publikationen
Core Facility der Universität Konstanz

Gesperrt bis

Titel in einer weiteren Sprache

Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published

Erschienen in

Organometallics. 2003, 22(6), pp. 1320-1325. ISSN 0276-7333. eISSN 1520-6041. Available under: doi: 10.1021/om0207515

Zusammenfassung

Binuclear siloxyaluminum methyl complexes of the type Me2Al(μ-OSiR3)2AlMe2 react with protonated N,N-dimethylanilinium tetrakis(pentafluorophenyl)borate, with release of CH4, to form the dimethylaniline (DMA)-stabilized siloxyaluminum methyl cations Me2Al(μ-OSiR3)2AlMe(NMe2(C6H5)+. These cations abstract a Cl- ligand from (C5H5)2ZrCl2, to give the dinuclear cation {(C5H5)2ZrCl}2(μ-Cl)+, and a CH3- ligand from (C5H5)2Zr(CH3)2, to give by way of the DMA-stabilized cation (C5H5)2Zr(CH3)NMe2(C6H5)+ the CH-activation product (C5H5)2ZrCH2NMe(C6H5)+; reaction with Me2Si(ind)2ZrMe2 in toluene solution yields a moderately active catalyst for ethene polymerization. This reactivity of siloxyaluminum methyl cations is qualitatively similar to, although substantially lower than, that of a silica gel surface treated with trimethylaluminum and a cationizing agent.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
540 Chemie

Schlagwörter

Konferenz

Rezension
undefined / . - undefined, undefined

Forschungsvorhaben

Organisationseinheiten

Zeitschriftenheft

Zugehörige Datensätze in KOPS

Zitieren

ISO 690WROBEL, Olaf, Frank SCHAPER, Ulrich WIESER, Heike GREGORIUS, Hans-Herbert BRINTZINGER, 2003. Siloxyaluminum alkyl cations : syntheses, structures, and reactions related to activation of zirconocene catalysts on silica gel surfaces. In: Organometallics. 2003, 22(6), pp. 1320-1325. ISSN 0276-7333. eISSN 1520-6041. Available under: doi: 10.1021/om0207515
BibTex
@article{Wrobel2003Silox-23727,
  year={2003},
  doi={10.1021/om0207515},
  title={Siloxyaluminum alkyl cations : syntheses, structures, and reactions related to activation of zirconocene catalysts on silica gel surfaces},
  number={6},
  volume={22},
  issn={0276-7333},
  journal={Organometallics},
  pages={1320--1325},
  author={Wrobel, Olaf and Schaper, Frank and Wieser, Ulrich and Gregorius, Heike and Brintzinger, Hans-Herbert}
}
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/123456789/23727">
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:language>eng</dc:language>
    <dcterms:bibliographicCitation>Organometallics ; 22 (2003), 6. - S. 1320-1325</dcterms:bibliographicCitation>
    <dc:creator>Brintzinger, Hans-Herbert</dc:creator>
    <dcterms:issued>2003</dcterms:issued>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-06-20T15:08:49Z</dc:date>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-06-20T15:08:49Z</dcterms:available>
    <dc:contributor>Schaper, Frank</dc:contributor>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dcterms:title>Siloxyaluminum alkyl cations : syntheses, structures, and reactions related to activation of zirconocene catalysts on silica gel surfaces</dcterms:title>
    <dc:contributor>Wrobel, Olaf</dc:contributor>
    <dc:contributor>Brintzinger, Hans-Herbert</dc:contributor>
    <dc:creator>Schaper, Frank</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/23727"/>
    <dcterms:abstract xml:lang="eng">Binuclear siloxyaluminum methyl complexes of the type Me&lt;sub&gt;2&lt;/sub&gt;Al(μ-OSiR&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;AlMe&lt;sub&gt;2&lt;/sub&gt; react with protonated N,N-dimethylanilinium tetrakis(pentafluorophenyl)borate, with release of CH&lt;sub&gt;4&lt;/sub&gt;, to form the dimethylaniline (DMA)-stabilized siloxyaluminum methyl cations Me&lt;sub&gt;2&lt;/sub&gt;Al(μ-OSiR&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;AlMe(NMe&lt;sub&gt;2&lt;/sub&gt;(C&lt;sub&gt;6&lt;/sub&gt;H&lt;sub&gt;5&lt;/sub&gt;)&lt;sup&gt;+&lt;/sup&gt;. These cations abstract a Cl&lt;sup&gt;-&lt;/sup&gt; ligand from (C&lt;sub&gt;5&lt;/sub&gt;H&lt;sub&gt;5&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;ZrCl&lt;sub&gt;2&lt;/sub&gt;, to give the dinuclear cation {(C&lt;sub&gt;5&lt;/sub&gt;H&lt;sub&gt;5&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;ZrCl}&lt;sub&gt;2&lt;/sub&gt;(μ-Cl)&lt;sup&gt;+&lt;/sup&gt;, and a CH&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;-&lt;/sup&gt; ligand from (C&lt;sub&gt;5&lt;/sub&gt;H&lt;sub&gt;5&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;Zr(CH&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;, to give by way of the DMA-stabilized cation (C&lt;sub&gt;5&lt;/sub&gt;H&lt;sub&gt;5&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;Zr(CH&lt;sub&gt;3&lt;/sub&gt;)NMe&lt;sub&gt;2&lt;/sub&gt;(C&lt;sub&gt;6&lt;/sub&gt;H&lt;sub&gt;5&lt;/sub&gt;)&lt;sup&gt;+&lt;/sup&gt; the CH-activation product (C&lt;sub&gt;5&lt;/sub&gt;H&lt;sub&gt;5&lt;/sub&gt;)&lt;sub&gt;2&lt;/sub&gt;ZrCH&lt;sub&gt;2&lt;/sub&gt;NMe(C&lt;sub&gt;6&lt;/sub&gt;H&lt;sub&gt;5&lt;/sub&gt;)&lt;sup&gt;+&lt;/sup&gt;; reaction with Me&lt;sub&gt;2&lt;/sub&gt;Si(ind)&lt;sub&gt;2&lt;/sub&gt;ZrMe&lt;sub&gt;2&lt;/sub&gt; in toluene solution yields a moderately active catalyst for ethene polymerization. This reactivity of siloxyaluminum methyl cations is qualitatively similar to, although substantially lower than, that of a silica gel surface treated with trimethylaluminum and a cationizing agent.</dcterms:abstract>
    <dc:contributor>Wieser, Ulrich</dc:contributor>
    <dc:contributor>Gregorius, Heike</dc:contributor>
    <dc:creator>Gregorius, Heike</dc:creator>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:creator>Wieser, Ulrich</dc:creator>
    <dc:creator>Wrobel, Olaf</dc:creator>
  </rdf:Description>
</rdf:RDF>

Interner Vermerk

xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter

Kontakt
URL der Originalveröffentl.

Prüfdatum der URL

Prüfungsdatum der Dissertation

Finanzierungsart

Kommentar zur Publikation

Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Begutachtet
Diese Publikation teilen