The semiclassical KIESC for all the hydrogens is below 5 at 298.15 K, whereas incorporating tunneling enhances the KIET resulting in a value of 6.2, 6.0 and 31.0 for H1, H2 and H3, the latter value showing strong evidence of tunneling. A similar trend in the KIET was also predicted for 2H,OH, giving a maximum value of 19.6 for H3 (see Fig. ).