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Hi LiHuaYu,
Thanks for your replying!
1. For the IRC calculation, I set the maxpoints=20 in both the forward and reverse direction. In the results, from the transition state we can reach the reactant but not the products (left hand side). In fact, the program calculated about 11 points and stopped. Selecting the end point and open it with GaussView, I found that this is not the products but an intermediate. Therefore, I think the IRC is long enough to get the intermediate.
2. The structure from IRC could not be used for single point energy calculation directly. So I did the optimization first and the optimized structure was used for later CCSD(T) calculation.
Still, thanks for your advice! |
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