-10 theory that is used in Fig. . A similar anomaly is evident in the SAPT0(KS) results, which can been seen from the statistical distributions of E elst+exch at that level of theory [Fig. ]. We note that the largest values of E exch often correspond to the largest (most attractive) total interaction energies, as is seen for example in SAPT calculations of ClO - n • • • C 6 H 6 complexes (n = 1, 2, 3, 4) . In the present case, ClO - 3 bucks this trend, according to the energy components listed in Table .