Find the transition state structure and calculate the barrier height (ΔV^≠) for the following reaction.
reaction：HNC → HCN
methods : MP2/aug-cc-pVTZ、MP2/6-31+G**

Calculate the k(rate constant) at different temperatures (at least 3 different temperatures) for the following reaction and plot of ln(k) versus 1000/T then compare with the experimental values. 

reaction：CH₄ +OH․→ H₂O + CH₃․
reaction：CD₄ +OH․→ H₂O(1 H will replace by D) + CD₃․
methods : MP2/aug-cc-pVTZ、MP2/6-31+G**