Figure 3. MB-PES contour diagram (Blue, Cyan, Red and Green dots represents, the initial, intermediate, TSs and final points of the reaction, respectively) with transition vectors at TS1 and TS2 (red arrows)

From

Exploring Potential Energy Surface with Mathematica: An Algorithmic Demonstration of Minimum Energy Path, Stationary Points and Transition State

Krishnamohan G. P., Omar H., Sreeja T. D., Roy K. B.

World Journal of Chemical Education. 2022, 10(4), 124-130 doi:10.12691/wjce-10-4-1