Chemiluminescence Detection with Water-Soluble Iridium(III) Complexes Containing a Sulfonatefunctionalised Ancillary Ligand

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This article was originally published as:

Truong, J., Spilstead, K. B., Barbante, B. J., Doeven, E. H., Wilson, D. J.,... Francis, P. S. (2014). Chemiluminescence detection with water-soluble iridium(III) complexes containing a sulfonatefunctionalised ancillary ligand. Analyst, 139(22), 6028-6035. doi:10.1039/c4an01366b



The chemiluminescence from four cyclometalated iridium(III) complexes containing an ancillary bathophenanthroline-disulfonate ligand exhibited a wide range of emission colours (green to red), and in some cases intensities that are far greater than the commonly employed benchmark reagent, [Ru(bpy)3]2+. A similar complex incorporating a sulfonated triazolylpyridine-based ligand enabled the emission to be shifted into the blue region of the spectrum, but the responses with this complex were relatively poor. DFT calculations of electronic structure and emission spectra support the experimental findings.


Used by permission: Royal Society of Chemistry

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At the time of writing David Wilson was affiliated with Avondale College as a Conjoint Lecturer.