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. 2021 Mar 5;125(10):2061–2068. doi: 10.1021/acs.jpca.0c08476

Table 1. DFT-Calculated Energy Profile of Molecular Rotor 5.

label relative energy (kJ mol–1) structure imaginary frequency (cm–1)
5a 0 ground state  
TS-Ib 22.9 oscillation barrier i55
TS-IIb 33.9 sliding barrier i55
TS-IIIb 68.6 gearing barrier i71
a

Optimized to the local energy minimum.

b

Optimized to the first-order saddle point.