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(a) UV-vis spectra along with (b) temporal evolution of [H2Q] and [Q] in dilute polymer solutions of [PEG-Cat]4+Fe3+ as calculated from A280nm and A390nm, respectively. (c) Raw UV-vis spectra and (d) temporal evolution of [H2Q] and [Q] in dilute polymer solutions of [PEG-Cat]4+ Au3+ precursors.
