• Irina R. Dayanova
  • Aliia V. Shamsieva
  • Igor D. Strelnik
  • Tatiana P. Gerasimova
  • Ilya E. Kolesnikov
  • Robert R. Fayzullin
  • Daut R. Islamov
  • Alina F. Saifina
  • Elvira I. Musina
  • Evamarie Hey-Hawkins
  • Andrey A. Karasik

The row of metallocyclic dinuclear gold(I) complexes with cyclic diphosphines, namely, P-pyridylethyl-substituted 1,5-diaza-3,7-diphosphacyclooctanes, has been obtained. Further interaction of the dinuclear gold(I) complexes with copper(I) iodide gave the first examples of hexanuclear AuI/CuI complexes containing two unusual trinuclear AuICu2I2 fragments. The structures of di- and hexanuclear complexes were confirmed by NMR spectroscopy, ESI mass spectrometry, elemental analysis, and single-crystal X-ray diffraction. All of the obtained complexes are moderate emitters in the solid state. Dinuclear gold(I) complexes displayed a greenish emission with the maxima in the emission spectra at ca. 550 nm. The obtained hexanuclear heterobimetallic AuI/CuI complexes are triplet solid-state blue emitters with the maximum in the emission spectra at 463 and 484 nm. According to the TD-DFT calculations, the observed emission of all studied complexes had a triplet origin and was caused by the 3CC or 3(MLCT) T1 → S0 transitions for dinuclear and hexanuclear complexes, respectively.

Original languageEnglish
Pages (from-to)5402-5411
Number of pages10
JournalInorganic Chemistry
Volume60
Issue number7
DOIs
StatePublished - 5 Apr 2021

    Research areas

  • LUMINESCENT COMPLEXES, BASIS-SETS, GOLD(I), LIGHT, CLUSTERS, COPPER, EMISSION, LIGANDS, PSEUDOPOTENTIALS, CONSTRUCTION

    Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

ID: 86366847