A1 Journal article (refereed)
Heterometallic Au(I)–Cu(I) Clusters : Luminescence Studies and 1O2 Production (2023)

Romo-Islas, G., Ward, J. S., Rissanen, K., & Rodríguez, L. (2023). Heterometallic Au(I)–Cu(I) Clusters : Luminescence Studies and 1O2 Production. Inorganic Chemistry, 62(21), 8101-8111. https://doi.org/10.1021/acs.inorgchem.3c00046

JYU authors or editors

Publication details

All authors or editors: Romo-Islas, Guillermo; Ward, Jas S.; Rissanen, Kari; Rodríguez, Laura

Journal or series: Inorganic Chemistry

ISSN: 0020-1669

eISSN: 1520-510X

Publication year: 2023

Publication date: 16/05/2023

Volume: 62

Issue number: 21

Pages range: 8101-8111

Publisher: American Chemical Society (ACS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1021/acs.inorgchem.3c00046

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/87101

Abstract

Two different organometallic gold(I) compounds containing naphthalene and phenanthrene as fluorophores and 2-pyridyldiphenylphosphane as the ancillary ligand were synthesized (compounds 1 with naphthalene and 2 with phenanthrene). They were reacted with three different copper(I) salts with different counterions (PF6–, OTf–, and BF4–; OTf = triflate) to obtain six Au(I)/Cu(I) heterometallic clusters (compounds 1a–c for naphthalene derivatives and 2a–c for phenanthrene derivatives). The heterometallic compounds present red pure room-temperature phosphorescence in both solution, the solid state, and air-equilibrated samples, as a difference with the dual emission recorded for the gold(I) precursors 1 and 2. The presence of Au(I)–Cu(I) metallophilic contacts has been identified using single-crystal X-ray diffraction structure resolution of two of the compounds, which play a direct role in the resulting red-shifted emission with respect to the gold(I) homometallic precursors. Polystyrene (PS) and poly(methyl methacrylate) (PMMA) polymeric matrices were doped with our luminescent compounds, and the resulting changes in their emissive properties were analyzed and compared with those previously recorded in the solution and the solid state. All complexes were tested to analyze their ability to produce 1O2 and present very good values of ΦΔ up to 50%.

Keywords: coordination complexes; gold; copper; luminescence

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2023

Preliminary JUFO rating: 2