Abstract
We focus on the geometric nature of minimum energy crossing point (MECP) and give a reduced vibrational analysis (RVA) method for testing sufficiency of MECP candidate solution. Furthermore, an example is used to illustrate the risk if the test is ignored. In the support information, a detailed algorithm is given. The Gaussian and GaussView software are used in the example.
Supplementary materials
Title
LookForMECP
Description
Actions
Title
SI 20190520 LiuK
Description
Actions



![Author ORCID: We display the ORCID iD icon alongside authors names on our website to acknowledge that the ORCiD has been authenticated when entered by the user. To view the users ORCiD record click the icon. [opens in a new tab]](https://www.cambridge.org/engage/assets/public/coe/logo/orcid.png)