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• A description of multiphoton effects at high excitation intensities; the complete Experimental Section including descriptions of the syntheses of the arrays; SEC data, ¹H NMR spectra, and mass spectra for all new porphyrins and multiporphyrin arrays; a description of exploratory studies in the purification of Zn₂₀Fb; data from a comparative study of analytical SEC conditions; representative mass spectral data under different conditions; and representative absorption and fluorescence spectra of the arrays
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