Table 9.
Calculated B3LYP/6-311+G(d,p) Energies a, Dipole moments (Debye), relatives Energiesa, (C13-C14-C15-C18) dihedral angle, equilibrium population at 25°C and figures of conformations 1-9 of the 1S, 8R, 9S isomer of methyl iso-dodovisate A (3).
Conformer | 3 | 1 | 4 | 2 | 5 | 6 |
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E (ua) | −1041.365913 | −1041.365955 | −1041.365867 | −1041.365937 | −1041.365388 | −1041.365382 |
Dipole moment | 1.21 | 3.73 | 0.97 | 2.88 | 1.73 | 3.31 |
dihedral angle | −116.4° | −116.1° | 112.4 | 112.2° | 1.7° | 2.0° |
ΔE (kJ/mol) | 0.11 | 0.00 | 0.3 | 0.05 | 1.49 | 1.50 |
Population (%) | 17.9 | 18.7 | 17.0 | 18.3 | 10.2 | 10.2 |
Conformer | 8 | 9 | 7 | |||
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E (ua) | −1041.364092 | −1041.364040 | −1041.364102 | |||
Dipole moment | 0.77 | 0.76 | 2.71 | |||
dihedral angle | −112.5° | 110.4 | 110.4° | |||
ΔE (kJ/mol) | 4.89 | 5.03 | 4.86 | |||
Population (%) | 2.6 | 2.5 | 2.6 |
a include zero-point vibration correction.