C2H5

S1

S2

S3

Energy (a.u)

−1144.567756

−1144.560062

−1144.567789

CH3

C1

C2

Energy (a.u)

−1144.563074 a.u

−1144.567789

NH2

M1

M2

M3

Energy (a.u)

−1144.545873

−1144.545363

−1144.567789