- Near-Infrared Electrochemiluminescence in Water through Regioselective Sulfonation of Diaza  and helicene Dyes
Haidong Li, Romain Duwald, Simon Pascal, Silvia Voci, Céline Besnard, Johann Bosson, Laurent Bouffier, Jérôme Lacour, Neso Sojic
Chem. Commun. 2020, 56, 9771-9774
A series of water-soluble helicene dyes generating intense electrochemiluminescence (ECL) signal in physiological conditions is reported. Those species were prepared using diaza  and helicenes as structural cores modified with sulfonate groups in various positions. Such functional groups improve their water solubility and induce a red-shifted emission. Efficient ECL emission up to the near-infrared is achieved in water.
open archive unige:140303