Blue Electrogenerated Chemiluminescence from Water-Soluble Iridium Complexes Containing Sulfonated Phenylpyridine or Tetraethylene Glycol Derivatized Triazolylpyridine Ligands
Emily Kerr, Egan H Doeven, Gregory J Barbante, Timothy U Connell, Paul S Donnelly, David JD Wilson, Trent D Ashton, Frederick M Pfeffer, Paul S Francis
Chemistry - A European Journal | WILEY-V C H VERLAG GMBH | Published : 2015
Incorporating phenylpyridine- and triazolylpyridine-based ligands decorated with methylsulfonate or tetraethylene glycol (TEG) groups, a series of iridium(III) complexes has been created for green and blue electrogenerated chemiluminescence under analytically useful aqueous conditions, with tri-n-propylamine as a coreactant. The relative electrochemiluminescence (ECL) intensities of the complexes were dependent on the sensitivity of the photodetector over the wavelength range and the pulse time of the applied electrochemical potential. In terms of the integrated area of corrected ECL spectra, with a pulse time of 0.5 s, the intensities of the Ir(III) complexes were between 18 and 102 % that ..View full abstract
The Australian Research Council (ARC) provided funding for this research, and P.S.D. and P.S.F. are ARC Future Fellows. We also thank La Trobe University, NCI-NF, and VPAC for generous grants of computing resources.