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UV absorbance and photoluminescence emission spectra of complexes 1 and 2 before and after reaction with solid PbO2. Solid lines show spectra of the complexes’ original absorbance luminescence, while dashed lines show the absorbance luminescence when the complexes were mixed with PbO2 and subsequently filtered. Complexes are 10 μM in 50:50 (v/v) acetonitrile/water: (a) 1 absorbance, (b) 2 absorbance, (c) 1 photoluminescence, and (d) 2 photoluminescence.
