Heterometallic Cluster-Capped Tetrahedral Assemblies with Postsynthetic Modification of the Metal Cores

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Julia R. Shakirova
  • Elena V. Grachova
  • Vladislav V. Gurzhiy
  • Senthil Kumar Thangaraj
  • Janne Jänis
  • Alexey S. Melnikov
  • Antti Karttunen

  • Sergey P. Tunik
  • Igor O. Koshevoy

Research units

  • St. Petersburg State University
  • University of Eastern Finland
  • St. Petersburg State Polytechnical University

Abstract

Combining the star-shaped alkynyl ligands with low-nuclearity gold–copper triphosphane clusters produces 3D metallocage aggregates, which demonstrate room temperature phosphorescence in solution (max Φem=0.6). Their luminescence mainly originates from cluster-localized metal-to-ligand charge transfer excited state. These supramolecular assemblies can be easily converted into the isostructural gold-silver congeners by the direct exchange of the metal ions. Such modification of the terminal metal cores switches the emission to the intraligand (alkyne) electronic transitions of the triplet manifold, that represents an unusual optical functionality among the metallocycle/metallocage complexes.

Details

Original languageEnglish
Pages (from-to)14154-14158
Number of pages5
JournalAngewandte Chemie - International Edition
Volume57
Issue number43
Publication statusPublished - 22 Oct 2018
MoE publication typeA1 Journal article-refereed

    Research areas

  • alkyne ligands, cluster compounds, coinage metals, heterometallic complexes, phosphorescence

ID: 31437740