The wrong Hammett σp value and yield value for the p-CN substituent was used to construct Figure 5. The correct values are 0.66 for the σp value and 54% for yield. When the correct values are used, the Gaussian fit of the data shows a substantially lower correlation (r2 = 0.56) relative to the published erroneous value (r2 = 0.87). Figure 5 should appear as shown below.