Pyrazolo[4,3-h]quinoline Ligand-Based Iridium(III) Complexes for Electrochemiluminescence

Abstract

Electrochemiluminescence (ECL) based on [Ru(bpy)3]2+ systems is widely utilized for immunoassays. In order to extend the promising potential of ECL-based applications, IrIII complexes have recently attracted attention as probes because of their excellent luminescent properties and tunable emission wavelength. Here we describe a series of Ir complexes using a large π-conjugated ligand and different ancillary chelates. The complexes synthesized have been chemically and spectroscopically characterized and used for ECL measurements with annihilation and co-reactant methods. One of the IrIII complexes investigated exhibits the brightest, ever reported, ECL efficiency in acetonitrile employing the benzoyl peroxide (BPO) co-reactant method.

Citation

Hsu, C., Longhi, E., Sinn, S., Hawes, C. S., Young, D. C., Kruger, P. E., & Cola, L. D. (2017). Pyrazolo[4,3-h]quinoline Ligand-Based Iridium(III) Complexes for Electrochemiluminescence. Chemistry - An Asian Journal, 12(13), 1649-1658. https://doi.org/10.1002/asia.201700556

• Journal Article Type: Article
• Online Publication Date: Jun 6, 2017
• Publication Date: Jul 4, 2017
• Deposit Date: May 30, 2023
• Journal: Chemistry - An Asian Journal
• Print ISSN: 1861-4728
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 12
• Issue: 13
• Pages: 1649-1658
• DOI: https://doi.org/10.1002/asia.201700556
• Keywords: General Chemistry; Biochemistry; Organic Chemistry