When that functional is used with a double-ζ basis set, the difference between CP-corrected and uncorrected interaction energies is large, ranging from 19-48 kcal/mol. It should be noted that double-ζ basis sets are not recommended for use with ωB97M-V and similar, combinatorially-optimized B97based functionals. The def2-SVP basis is specifically suggested to be "incompatible" with ωB97M-V, and def2-TZVPPD is suggested as the smallest recommended basis set. These recommendations are based in part on thermochemical data and may be overly conservative for non-covalent interactions, thus it is relevant to consider smaller double-ζ basis sets here. The M06-2X functional, which is routinely used with small Pople basis sets, actually converges to the DFT/CBS limit in a manner that is very similar to ωB97M-V, as measured by the difference between CP-corrected and uncorrected values of ∆E int .