Au(I)-Ynaminyl Complexes for Photocatalysis
Abstract A series of gold(I) complexes featuring a novel ligand–gold–ynaminyl architecture was synthesized and characterized. The incorporation of a (carbazolyl)ethynide (C≡C-Cbz) ligand connects the photonic functionality of the carbazolyl with the N-heterocyclic carbene (NHC) through a long ethynide-Au bridge, showing shorter radiative lifetimes and higher ET values in solution in comparison to their carbene–metal–amido (CMA) congeners. The photophysical properties of the NHC complexes reveal a broad UV emission band when measured at room temperature and a hidden phosphorescence band with high quantum yield (up to 94%) at 77 K. This new photonic functional group based on polar ynamines is presented as a versatile platform for the design of high-energy gold-based luminophores with applications in photocatalysis.
Authors
- Catherine S. J. Cazin (ORCID: https://orcid.org/0000-0002-9094-8131)
- Francis Bru (ORCID: https://orcid.org/0000-0002-4283-2433)
- Kristof Van Hecke (ORCID: https://orcid.org/0000-0002-2455-8856)
- Yi-Jyun Lien (ORCID: https://orcid.org/0000-0003-1566-2173)
- Bholanath Maity (ORCID: https://orcid.org/0000-0001-5969-0112)
- Mark E. Thompson (ORCID: https://orcid.org/0000-0002-7764-4096)
- Nestor Bracho Pozsoni (ORCID: https://orcid.org/0009-0004-3880-2487)
- Luigi Cavallo (ORCID: https://orcid.org/0000-0002-1398-338X)
- Sayan Dutta (ORCID: https://orcid.org/0000-0002-8232-5989)
- Steven P. Nolan (ORCID: https://orcid.org/0000-0001-9024-2035)
- Pierre Arnaut
Institutions
- University of Southern California (US)
- California Southern University (US)
- Ghent University (BE)
- King Abdullah University of Science and Technology (SA)
- Southern States University (US)
Publication Details
- Journal
- Inorganic Chemistry
- Published
- 2026-09-04
- DOI
- https://doi.org/10.1021/acs.inorgchem.6c02803
- Primary Topic
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Fonds Wetenschappelijk Onderzoek
- King Abdullah University of Science and Technology
- Universiteit Gent