In addition, the total interaction energy at this level (-3.21 kcal/mol) is in good agreement with that estimated at a much more expensive level (-3.6 kcal/mol at ωB97X-V/def2-QZVPP). In previous study we have also applied SAPT0/aug-cc-pVTZ for this system, which shows ∆Eels = -0.68 kcal/mol, ∆Eexch = 2.09 kcal/mol, ∆Eind = -0.08 kcal/mol and ∆Edisp = -5.83 kcal/mol. From the comparison we can again find that there is a very strong one-to-one correspondence between the terms of sobEDAw and SAPT.