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Ligand rebinding to heme. (A) The CO rebinding kinetics for H2O-FePPIX above the glass transition temperature. (Inset) Transient absorption spectra at room temperature. The delays are 10, 20, 40, 80, 160, 300, 500, 1,000, 2,000, and 4,000 picoseconds. (B) NO rebinding to H2O-FePPIX.
