Physical and photophysical properties of a linear copper(I) complex of a bulky acenapthene-based NHC ligand

Bryony M. Hockin, Campbell F.R. Mackenzie, David B. Cordes, Alexandra M.Z. Slawin, Neil Robertson, Eli Zysman-Colman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We report the first example of a charge-neutral linear two-coordinate copper(I) complex bearing a sterically demanding acenaphthoimidazolylidene-based N-heterocyclic carbene (NHC) ligand. The identity and geometry of the complex are confirmed by single-crystal X-ray diffraction (XRD) analysis. The complex is poorly emissive at room temperature, showing either ligand-centered (LC) emission around 340 nm when excited at 300 nm or ligand-to-ligand charge transfer (LLCT) emission at 540 nm when excited at 420 nm; in chloroform, dual emission is observed upon photoexcitation at 300 nm. Nanosecond emission lifetimes were recorded for these processes. This is the first example of emissive linear copper(I) complexes containing this bulky NHC ligand.

Original languageEnglish
JournalJournal of coordination chemistry
Early online date25 Jan 2021
DOIs
Publication statusE-pub ahead of print - 25 Jan 2021

Keywords

  • acenaphthoimidazolylidene
  • Copper complex
  • DFT study
  • dual emission
  • linear complex

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