Six-Membered N-Heterocyclic Carbenes with a 1,1′-Ferrocenediyl Backbone : Bulky Ligands with Strong Electron-Donor Capacity and Unusual Non-Innocent Character

Lade...
Vorschaubild
Dateien
Siemeling.pdf
Siemeling.pdfGröße: 3.23 MBDownloads: 1638
Datum
2009
Autor:innen
Siemeling, Ulrich
Färber, Christian
Leibold, Michael
Bruhn, Clemens
Sarkar, Biprajit
von Hopffgarten, Moritz
Frenking, Gernod
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
EU-Projektnummer
DFG-Projektnummer
Projekt
Open Access-Veröffentlichung
Sammlungen
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
unikn.publication.listelement.citation.prefix.version.undefined
European Journal of Inorganic Chemistry. 2009, 2009(31), pp. 4607-4612. ISSN 1434-1948. Available under: doi: 10.1002/ejic.200900863
Zusammenfassung

Abstract

The stable, crystalline N-heterocyclic diaminocarbene fc[N(CH2tBu)-C-N(CH2tBu)] (2d, fc = 1,1′-ferrocenediyl) was prepared by deprotonation of its formamidinium precursor fc[N(CH2tBu)-CH-N(CH2tBu)][BF4] (1d) and used for the preparation of the 16 valence electron complexes [Mo(2d)(CO)4], [RhCl(2d)(cod)] (cod = 1,5-cyclooctadiene) and [RhCl(2d)(CO)2]. 1d, 2d and [RhCl(2d)(cod)] were structurally characterised by single-crystal X-ray diffraction studies. The electrochemical properties of 2d, its 2-adamantyl analogue 2c, its complex [RhCl(2d)(CO)2] and of the precursors 1d and 1,1′-bis(neopentylamino)ferrocene were investigated by electrochemistry. The carbenes are easily oxidised to the corresponding radical cation, whose persistent nature is unprecedented in the chemistry of N-heterocyclic carbenes. The spin density is located at the Fe atom and the carbene C atom according to the results of EPR spectroscopic studies and DFT calculations.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
540 Chemie
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690SIEMELING, Ulrich, Christian FÄRBER, Michael LEIBOLD, Clemens BRUHN, Philipp MÜCKE, Rainer F. WINTER, Biprajit SARKAR, Moritz VON HOPFFGARTEN, Gernod FRENKING, 2009. Six-Membered N-Heterocyclic Carbenes with a 1,1′-Ferrocenediyl Backbone : Bulky Ligands with Strong Electron-Donor Capacity and Unusual Non-Innocent Character. In: European Journal of Inorganic Chemistry. 2009, 2009(31), pp. 4607-4612. ISSN 1434-1948. Available under: doi: 10.1002/ejic.200900863
BibTex
@article{Siemeling2009SixMe-13792,
  year={2009},
  doi={10.1002/ejic.200900863},
  title={Six-Membered N-Heterocyclic Carbenes with a 1,1′-Ferrocenediyl Backbone : Bulky Ligands with Strong Electron-Donor Capacity and Unusual Non-Innocent Character},
  number={31},
  volume={2009},
  issn={1434-1948},
  journal={European Journal of Inorganic Chemistry},
  pages={4607--4612},
  author={Siemeling, Ulrich and Färber, Christian and Leibold, Michael and Bruhn, Clemens and Mücke, Philipp and Winter, Rainer F. and Sarkar, Biprajit and von Hopffgarten, Moritz and Frenking, Gernod}
}
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/123456789/13792">
    <dc:creator>Winter, Rainer F.</dc:creator>
    <dc:contributor>von Hopffgarten, Moritz</dc:contributor>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/13792/2/Siemeling.pdf"/>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/13792"/>
    <dc:contributor>Mücke, Philipp</dc:contributor>
    <dc:rights>terms-of-use</dc:rights>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/13792/2/Siemeling.pdf"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/29"/>
    <dc:contributor>Winter, Rainer F.</dc:contributor>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dc:contributor>Bruhn, Clemens</dc:contributor>
    <dc:creator>Frenking, Gernod</dc:creator>
    <dcterms:issued>2009</dcterms:issued>
    <dc:contributor>Leibold, Michael</dc:contributor>
    <dc:contributor>Sarkar, Biprajit</dc:contributor>
    <dc:contributor>Frenking, Gernod</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Färber, Christian</dc:contributor>
    <dc:language>eng</dc:language>
    <dcterms:title>Six-Membered N-Heterocyclic Carbenes with a 1,1′-Ferrocenediyl Backbone : Bulky Ligands with Strong Electron-Donor Capacity and Unusual Non-Innocent Character</dcterms:title>
    <dc:creator>Bruhn, Clemens</dc:creator>
    <dc:creator>Mücke, Philipp</dc:creator>
    <dc:creator>Färber, Christian</dc:creator>
    <dc:creator>Siemeling, Ulrich</dc:creator>
    <dcterms:abstract xml:lang="eng">Abstract&lt;br /&gt;&lt;br /&gt;The stable, crystalline N-heterocyclic diaminocarbene fc[N(CH2tBu)-C-N(CH2tBu)] (2d, fc = 1,1′-ferrocenediyl) was prepared by deprotonation of its formamidinium precursor fc[N(CH2tBu)-CH-N(CH2tBu)][BF4] (1d) and used for the preparation of the 16 valence electron complexes [Mo(2d)(CO)4], [RhCl(2d)(cod)] (cod = 1,5-cyclooctadiene) and [RhCl(2d)(CO)2]. 1d, 2d and [RhCl(2d)(cod)] were structurally characterised by single-crystal X-ray diffraction studies. The electrochemical properties of 2d, its 2-adamantyl analogue 2c, its complex [RhCl(2d)(CO)2] and of the precursors 1d and 1,1′-bis(neopentylamino)ferrocene were investigated by electrochemistry. The carbenes are easily oxidised to the corresponding radical cation, whose persistent nature is unprecedented in the chemistry of N-heterocyclic carbenes. The spin density is located at the Fe atom and the carbene C atom according to the results of EPR spectroscopic studies and DFT calculations.</dcterms:abstract>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-06-21T11:28:06Z</dcterms:available>
    <dc:creator>Leibold, Michael</dc:creator>
    <dc:creator>Sarkar, Biprajit</dc:creator>
    <dcterms:bibliographicCitation>First publ. in: European Journal of Inorganic Chemistry (2009), 31, pp. 4607–4612</dcterms:bibliographicCitation>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-06-21T11:28:06Z</dc:date>
    <dc:contributor>Siemeling, Ulrich</dc:contributor>
    <dc:creator>von Hopffgarten, Moritz</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
Nein
Begutachtet