Fig. 4: 1H NMR titration.

1H NMR titration with CoTAPc into a 0.20 mM DMF-d7 solution of IrQPY, highlighting some shifted pendent pyridyl proton signals.
1H NMR titration with CoTAPc into a 0.20 mM DMF-d7 solution of IrQPY, highlighting some shifted pendent pyridyl proton signals.