Figure 2.
Number of reducing equivalents per Ti8 node vs time for three different photoreductions of MIL-125 using a 200 W Hg/Xe lamp. Errors for data points are estimated to be ≤±0.1 equiv of e−/ H+, based on the error of NMR analysis by integration also taking into account error propagation from the balance accuracy and the estimated maximal sample loss. The sample in trial #2 (blue circles) became black by 17.5 h of photolysis and the color persisted after addition of excess tBu3ArO•, indicating decomposition.