So, I'm looking for a benchmark of DFT functionals not including dispersion corrections. Something similar to Grimme's and coworkers GMTKN30 database, but for benchmark calculations done without dispersion corrections.
As in the case of GMTKN30 database, I'm interested in the same properties: general main group thermochemistry & kinetics. But
- I already have calculations done many years ago without dispersion corrections since this feature simply was not implemented in most of the packages that time.
- My workhorse is G3/G4 method which relies on geometry obtained without dispersion corrections anyway.
- I quickly run few calculations including dispersion corrections and found no noticeable difference. Don't have time to redo all the work anyway.
I basically need to justify the choice of just a few DFT functional for my own benchmarks based on thorough literature reviews.