Therefore, in this study, we will focus on two additional conventional thermochemistry correction methods. The first approach involves the use of bond additivity corrections (BACs). BAC methods assume that the residual error from QM calculations can be attributed to errors associated with specific types of bonds within a molecule. Furthermore, the errors associated with a particular type of bond (e.g., a C-C single bond) are assumed to be largely consistent across various molecules that contain the same bond type. Therefore, a correction value can be fitted for each bond type found in a collection of reference molecules, and the total bond additivity correction is simply the sum of these corrections for every bond in a species of interest. In this work, we focus on two popular implementations of BAC: those of Petersson et al. and those of Anantharaman and Melius. For brevity, below we call the Anantharaman & Melius' BAC's "Melius-type" or "m-BAC", although we note that Melius had success with several different types of BACs during his long career. Similarly, we will denote Petersson's BAC as "Petersson-type" or "p-BAC".