Figure 4
Molecule pairs IIa/IIb: x − , –y + , −z + 1 (top) and x − , −y + , −z + , –y + , −z + 1 (bottom). Values of energies by pair: Etot = −52.3 0 kJ mol−1, Ecoul = −59.10 kJ mol−1, Epol = −26.9 0 kJ mol−1, Edisp = −41.5 0 kJ mol−1 and Erep = 75.2 0 kJ mol−1. Interaction energies were calculated using PIXEL3.1 (Gavezzotti, 2003, 2008) based on densities computed with G09 using the mp2/6–31** level of theory. |