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Figure 6
The σ(S—C1) − π*(C2=O3) and σ*(S—C1) − π(C2=O3) NBO stabilization energies (kJ mol−1) plotted as a function of α: S—C1—C2=O3 dihedral angle (°). Energies were calculated for the systematic α scans (Δα = ±15°) and the X-ray structure of (Im) as a starting conformer. Due to severe steric clashes of the terminal phenyl rings, only −150 ≤ α ≤ 150 values were allowed.

ISSN: 2052-5206
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