On the Dewar-Chatt-Duncanson Model for Catalytic Gold(I) Complexes (Articolo in rivista)

Type
Label
  • On the Dewar-Chatt-Duncanson Model for Catalytic Gold(I) Complexes (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1002/chem.201000608 (literal)
Alternative label
  • Salvi, Nicola; Belpassi, Leonardo; Tarantelli, Francesco (2010)
    On the Dewar-Chatt-Duncanson Model for Catalytic Gold(I) Complexes
    in Chemistry (Weinh., Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Salvi, Nicola; Belpassi, Leonardo; Tarantelli, Francesco (literal)
Pagina inizio
  • 7231 (literal)
Pagina fine
  • 7240 (literal)
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  • 16 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • DOI: 10.1002/chem.201000608 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [Salvi, Nicola; Belpassi, Leonardo; Tarantelli, Francesco] Univ Perugia, Dipartimento Chim, I-06123 Perugia, Italy. [Salvi, Nicola; Belpassi, Leonardo; Tarantelli, Francesco] CNR, ISTM, I-06123 Perugia, Italy. (literal)
Titolo
  • On the Dewar-Chatt-Duncanson Model for Catalytic Gold(I) Complexes (literal)
Abstract
  • We provide a rigorous model-free definition and a detailed theoretical analysis of the electron-charge displacements making up the donation and back-donation components of the Dewar-Chatt-Duncanson model in some realistic catalytic intermediates of formula L-Au-I-S in which L is an N-heterocyclic carbene or Cl- and S is an eta(2)-coordinated Substrate containing a C-C multiple bond. We thus show, contrary to a widely held view, that the gold substrate bond is characterized by a large pi back-donation component that is comparable to, and often as large as, the sigma donation. The back-donation is found to be a highly tunable bond component and we analyze its relationship with the nature of the auxiliary ligand L and with structural (interdependent) factors such as metal substrate bond lengths and carbon pyramidalization. (literal)
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