N-heterocyclic carbene ligands as modulators of luminescence in three-coordinate gold(I) complexes with spectacular quantum yields

  1. Visbal, R. 2
  2. Ospino, I. 2
  3. López-De-Luzuriaga, J.M. 1
  4. Laguna, A. 2
  5. Gimeno, M.C. 2
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Instituto de Síntesis Química y Catálisis Homogénea
    info

    Instituto de Síntesis Química y Catálisis Homogénea

    Zaragoza, España

    ROR https://ror.org/002smyt64

Revista:
Journal of the American Chemical Society

ISSN: 0002-7863

Año de publicación: 2013

Volumen: 135

Número: 12

Páginas: 4712-4715

Tipo: Artículo

DOI: 10.1021/JA401523X SCOPUS: 2-s2.0-84875727078 WoS: WOS:000317032000035 GOOGLE SCHOLAR

Otras publicaciones en: Journal of the American Chemical Society

Resumen

The first three-coordinate gold(I) N-heterocyclic carbene (NHC) complexes have been prepared with the nido-carborane diphosphine. The complexes are brightly luminescent and present very high quantum yield values. The carbene ligand is able to modulate the energy of the emissions and, depending upon the substituent, the luminescence changes from blue to green. Theoretical calculations corroborate that the emissions are phosphorescence and arise from charge transfer (LML′CT) transitions from nido-carborane ligand (L) to metal/ligand group "gold(I)-NHC ligand" (ML′). © 2013 American Chemical Society.