Conjugated Polyunsaturated Oxacyclic Carbene Complexes : Synthesis, Structure, and Properties

Lade...
Vorschaubild
Dateien
Zu diesem Dokument gibt es keine Dateien.
Datum
2007
Autor:innen
Rädler, Michael
Mosbacher, Alexander
Drexler, Matthias
Hübner, Eike
Heck, Jürgen
Wittenberg, Christian
Steffens, Stefan
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Zusammenfassung

The reaction of [(CO)5M(thf)] with but-3-yn-1-ols in the presence of NEt3 offers a convenient route to 2-oxacyclopentylidene complexes [(CO)5M=C-O-CH2CH2CH2] (M = Cr (1a), W (1b)) in yields up to 96%. Furthermore, the reaction of 1 with ω-(dimethylamino)- substituted enals, Me2N-(CH=CH)n-C(=O)H, activated by Me3SiCl/NEt3 or POCl3/NEt3 gives via aldol condensation the unsaturated oxacyclic push-pull carbene complexes [(CO)5M=C-O-CH2CH2C{=CH-(CH=CH)n-NMe2}] (n = 0 (2), 1 (3), 2 (4), 3 (5)). In 2-5, the amino group acts as an electron-donor unit and the oxacyclic carbene pentacarbonyl moiety as an electron acceptor. The aminometallaenes 2-5 have been characterized spectroscopically, the chromium complexes 2a-5a additionally by X-ray structure analysis. For some complexes, their nonlinear optical properties (second harmonic generation) have been studied and β values up to 58 × 10-30 esu have been determined. The results of DFT calculations on chromium complexes 2a-5a show that on lengthening of the unsaturated chain the influence of the carbonyl-metal fragment on the polyunsaturated chain strongly decreases.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
540 Chemie
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690FISCHER, Helmut, Michael RÄDLER, Alexander MOSBACHER, Matthias DREXLER, Eike HÜBNER, Bernhard WEIBERT, Jürgen HECK, Christian WITTENBERG, Stefan STEFFENS, 2007. Conjugated Polyunsaturated Oxacyclic Carbene Complexes : Synthesis, Structure, and Properties. In: Collection of Czechoslovak Chemical Communications. 2007, 72(4), pp. 503-526. ISSN 0010-0765. eISSN 1212-6950. Available under: doi: 10.1135/cccc20070503
BibTex
@article{Fischer2007Conju-22830,
  year={2007},
  doi={10.1135/cccc20070503},
  title={Conjugated Polyunsaturated Oxacyclic Carbene Complexes : Synthesis, Structure, and Properties},
  number={4},
  volume={72},
  issn={0010-0765},
  journal={Collection of Czechoslovak Chemical Communications},
  pages={503--526},
  author={Fischer, Helmut and Rädler, Michael and Mosbacher, Alexander and Drexler, Matthias and Hübner, Eike and Weibert, Bernhard and Heck, Jürgen and Wittenberg, Christian and Steffens, 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/123456789/22830">
    <dc:contributor>Fischer, Helmut</dc:contributor>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:contributor>Wittenberg, Christian</dc:contributor>
    <dc:contributor>Weibert, Bernhard</dc:contributor>
    <dc:creator>Drexler, Matthias</dc:creator>
    <dc:contributor>Hübner, Eike</dc:contributor>
    <dc:rights>terms-of-use</dc:rights>
    <dcterms:bibliographicCitation>Collection of Czechoslovak chemical communications ; 72 (2007), 4. - S. 503-526</dcterms:bibliographicCitation>
    <dc:creator>Rädler, Michael</dc:creator>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:contributor>Steffens, Stefan</dc:contributor>
    <dc:creator>Wittenberg, Christian</dc:creator>
    <dc:language>eng</dc:language>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-05-24T07:33:58Z</dcterms:available>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-05-24T07:33:58Z</dc:date>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/22830"/>
    <dcterms:title>Conjugated Polyunsaturated Oxacyclic Carbene Complexes : Synthesis, Structure, and Properties</dcterms:title>
    <dcterms:abstract xml:lang="eng">The reaction of [(CO)5M(thf)] with but-3-yn-1-ols in the presence of NEt3 offers a convenient route to 2-oxacyclopentylidene complexes [(CO)5M=C-O-CH2CH2CH2] (M = Cr (1a), W (1b)) in yields up to 96%. Furthermore, the reaction of 1 with ω-(dimethylamino)- substituted enals, Me2N-(CH=CH)n-C(=O)H, activated by Me3SiCl/NEt3 or POCl3/NEt3 gives via aldol condensation the unsaturated oxacyclic push-pull carbene complexes [(CO)5M=C-O-CH2CH2C{=CH-(CH=CH)n-NMe2}] (n = 0 (2), 1 (3), 2 (4), 3 (5)). In 2-5, the amino group acts as an electron-donor unit and the oxacyclic carbene pentacarbonyl moiety as an electron acceptor. The aminometallaenes 2-5 have been characterized spectroscopically, the chromium complexes 2a-5a additionally by X-ray structure analysis. For some complexes, their nonlinear optical properties (second harmonic generation) have been studied and β values up to 58 × 10-30 esu have been determined. The results of DFT calculations on chromium complexes 2a-5a show that on lengthening of the unsaturated chain the influence of the carbonyl-metal fragment on the polyunsaturated chain strongly decreases.</dcterms:abstract>
    <dc:creator>Steffens, Stefan</dc:creator>
    <dc:creator>Hübner, Eike</dc:creator>
    <dc:contributor>Mosbacher, Alexander</dc:contributor>
    <dc:contributor>Heck, Jürgen</dc:contributor>
    <dc:creator>Heck, Jürgen</dc:creator>
    <dc:contributor>Rädler, Michael</dc:contributor>
    <dc:creator>Mosbacher, Alexander</dc:creator>
    <dc:contributor>Drexler, Matthias</dc:contributor>
    <dc:creator>Weibert, Bernhard</dc:creator>
    <dc:creator>Fischer, Helmut</dc:creator>
    <dcterms:issued>2007</dcterms:issued>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
  </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
Ja
Begutachtet
Diese Publikation teilen