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. 2021 Jun 3;8(Pt 4):633–643. doi: 10.1107/S2052252521004619

Table 3. QM/MM relative energies (in kcal mol−1) at the TPSS-D3 and B3LYP-D3 levels (both with the def2-TZVPD basis set) of the intermediates in the TIM isomerization reaction in the classical, criss-cross and shuffle mechanisms.

  Criss-cross Classical Shuffle
  TPSSS B3LYP TPSS B3LYP TPSS B3LYP
DHAP 0.0 0.0 0.0 0.0 0.0 0.0
TS1 9.7 6.4 9.7 6.4 9.7 6.4
Enediolate 1 9.4 5.4 9.4 5.4 9.4 5.4
TS2 15.2 13.3 17.1 13.6
Enediol 8.6 4.6 16.4 12.4
TS3 15.2 14.6 16.9 13.9 17.5 13.5
Enediolate 2 9.2 6.0 8.5 4.5 8.5 4.5
TS4 10.3 10.4 10.3 10.4 10.3 10.4
GAP 2.4 1.6 2.4 1.6 2.4 1.6