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Increased Phosphorescence of Cyclometalated Ir(III) Complex with a Planar Triarylborane Moiety upon Fluoride Anion Binding

Authors: Ryo Fukumoto,Eri Sakuda,Kenichiro Omoto,Shinnosuke Horiuchi,Yasuhiro Arikawa,Keisuke Umakoshi
Publisher: Oxford University Press (OUP)
Publish date: 2024-12-16
ISSN: 0366-7022,1348-0715 DOI: 10.1093/chemle/upae237
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This study offers intriguing insights into the luminescent behavior of Ir(III)-triarylborane complexes. I found your work very thought-provoking and would like to ask for clarification on a few points:

– The observed emission enhancement upon F⁻ binding is a unique finding compared to previous systems that often exhibit quenching. Could you share more details about the potential mechanisms driving this distinction?
– While the TD-DFT calculations provide valuable insights into electronic changes, the structural dynamics upon F⁻ binding remain less clear. Are there experimental plans to support these computational findings, such as advanced spectroscopy or crystallography?
– The quenching of emission intensity at higher F⁻ concentrations is intriguing. Could you elaborate on the potential mechanisms behind this and its relevance to sensing applications?

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