Tetranuclear Gold(I) clusters with nitrogen donor ligands: Luminescence and X-ray structure of Gold(I) Napthyl amidinate complex.

  1. Abdou, H.E. 2
  2. Mohamed, A.A. 2
  3. López-De-Luzuriaga, J.M. 1
  4. Fackler Jr. 2
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Texas A&M University
    info

    Texas A&M University

    College Station, Estados Unidos

    ROR https://ror.org/01f5ytq51

Zeitschrift:
Journal of Cluster Science

ISSN: 1040-7278

Datum der Publikation: 2004

Ausgabe: 15

Nummer: 4 SPEC. ISS.

Seiten: 397-411

Art: Artikel

DOI: 10.1007/S10876-004-5764-6 SCOPUS: 2-s2.0-12344285972 WoS: WOS:000225219600002 GOOGLE SCHOLAR

Andere Publikationen in: Journal of Cluster Science

Institutionelles Repository: lock_openOpen Access Editor

Zusammenfassung

The syntheses and characterization of gold(I) naphthyl, pentafluorophenyl, and trifluoromethylphenyl amidinate complexes are reported. The tetranuclear clusters are obtained from the reaction of Au(tetrahydrothiophene)Cl with the potassium salt of the corresponding amidinate in a THF solvent. The crystal structures of the gold(I) naphthyl, 2, and pentafluorophenyl, 3, amidinates show a short Au⋯Au distance of ∼3.0 Å typical of compounds having an aurophilic interaction. The gold atoms are arranged in a square (Au⋯Au⋯Au = 87°-92°) in the pentafluorophenyl derivative and in a parallelogram (Au⋯Au⋯Au = 68°-110°) in the naphthyl amidinate complexes. The naphthyl and trifluoromethylphenyl complexes are visibly luminescent in the solid state at liquid nitrogen temperature displaying asymmetric emission bands at 538 and 473 nm, respectively. The luminescent lifetimes of these species are in the millisecond range indicating phosphorescent processes. © 2004 Springer Science+Business Media, Inc.