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We present a method for the automatic determination of transition states (TSs) that is based on Grimme's RMSD-PP semiempirical tight binding reaction path method (J. Chem. Theory Comput. 2019, 15, 2847-2862, where the maximum energy structure along the path serves as an initial guess for DFT TS searches. The method is tested on 100 elementary reactions and located a total of 89 TSs correctly. Of the 11 remaining reactions, nine are shown not to be elementary reactions after all and for one ofdoi:10.7717/peerjpchem.15/fig-2 fatcat:347k2auj4vetdhfd6qlwv6dohe