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. 2011 Jan 10;108(4):1222–1227. doi: 10.1073/pnas.1017430108

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Fig. 1. — Absorption spectra in DMF: black trace—; blue trace—after bubbling CO₂ through the solution for 2 min; red trace—after vigorous bubbling of N₂ through the solution of (blue trace) for 20 min. (Inset) Kinetics trace acquired at 450 nm and 233 K overlaid with a single exponential fit to A = A_∞ + ΔA exp(-k_obst), where A_∞ is the absorbance after complete reaction, ΔA = A₀ - A_∞, A₀ is the initial absorbance, and k_obs is the observed rate constant. Reactant concentrations: , [CO₂] = 1 mM.

Inline graphic — Absorption spectra in DMF: black trace—; blue trace—after bubbling CO₂ through the solution for 2 min; red trace—after vigorous bubbling of N₂ through the solution of (blue trace) for 20 min. (Inset) Kinetics trace acquired at 450 nm and 233 K overlaid with a single exponential fit to A = A_∞ + ΔA exp(-k_obst), where A_∞ is the absorbance after complete reaction, ΔA = A₀ - A_∞, A₀ is the initial absorbance, and k_obs is the observed rate constant. Reactant concentrations: , [CO₂] = 1 mM.