Figure 5
Root-mean-square (r.m.s.) fits of the X-ray crystal structure of (4) (red) to (a) the gas-phase geometry-optimized conformer (4g) (ΔE = 17.50 kJ mol−1, blue structure) and (b) the conformation of (4) calculated in the presence of all neighbouring molecules in the crystal lattice (ΔE = 26.54 kJ mol−1, green structure). |