Electrochemiluminescence studies of the cyclometalated iridium(III) L2Ir(Acetyl acetonate (cas 17272-66-1)) complexes

Add time:10/01/2019    Source:infona.pl

Electrogenerated chemiluminescence (ECL) studies have been performed for the iridium(III) cyclometalated L 2 Ir(acac) complexes in 0.1M (n-C 4 H 9 ) 4 NPF 6 acetonitrile–dioxane (1:1, v,v) solutions using a triple-potential-step technique. Electron transfer between electrochemically generated L 2 Ir(acac) + cations and A − (radical anions of aromatic nitriles) leads to generation of the excited 3* L 2 Ir(acac) species. Extremely high ECL efficiencies (up to 0.55) close to the excited 3* L 2 Ir(acac) luminescence yields have been found.

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