FB-ENM and IDPP fail to control the timing of bond breaking and formation because they only constrain interatomic distances for individual atom pairs, without considering correlations between different pairs. In this subsection, we propose a common form of correlation term that regulates this timing using structural information from a given reactant and product. This correlation term imposes a constraint on a pair of atom pairs, where one pair forms a bond only in the reactant and the other only in the product. This constraint prohibits the simultaneous breaking of these two bonds by a function v c (r a , r b ) defined for two interatomic distances r a and r b as