01 · Reaction Pathway Intelligence
Chemical manufacturing relies on chemical reactions to convert raw materials into desired products. Many conventional computational approaches start from reaction pathways that scientists already have in mind and then test whether those pathways are likely to occur. Our approach starts one step earlier: it explores how molecular systems evolve under realistic conditions, revealing competing or unexpected reaction pathways and unwanted byproducts without requiring them to be specified in advance. This can give research and development teams a broader view of what may actually happen, help identify potential problems earlier, and focus experiments on the most relevant conditions and reaction mechanisms.
Problem. For well-defined elementary reactions, transition-state calculations, rate theory and kinetic modelling already provide mature and effective approaches. In complex reactive systems, the difficulty can arise earlier. Important intermediates, short-lived complexes, products and competing transitions may not yet be fully determined; finite temperature can also change the stability and interconversion of different structures, bringing states that are not obvious in static analysis into the reaction. When reaction topology itself remains incomplete, the first task is to broaden exploration of microscopic state space and network connectivity.
Approach. We use finite-temperature atomistic dynamics to extend this search. Compared with studying only preselected structures and elementary processes, trajectory-based modelling can further capture metastable states, short-lived intermediates and structural transitions that are actually visited and incorporate them into the reaction network. Depending on the problem, these dynamic data can be used to analyse state populations, reaction pathways, intermediate lifetimes and rates, and can also be connected to experimental observables such as product distributions, kinetic energies, thermalization and spectroscopy. This approach is particularly useful when reaction topology is not yet fully established, or when structural dynamics itself changes reaction behaviour.
Representative systems. Prior work spans finite-temperature formation and dissociation networks of small molecules, formation and collision chemistry of laser-cooling-relevant molecular species, formation and lifetimes of transient molecular complexes, and molecular activation on noble-metal clusters. The chemistry differs, but the systems face a similar problem: the microscopic states and transitions relevant to the final outcome cannot always be fully specified before computation begins. Across different cases, finite-temperature dynamics can reveal new intermediates, condition-dependent dominant pathways, short-lived molecular complexes, or reaction contributions that are difficult to infer from static structure comparison.
Applications. Reaction Pathway Intelligence addresses reaction-mechanism discovery, dynamic catalysis, formation and degradation chemistry, molecular-source chemistry, reactive materials, and complex reactive systems with metastable states, structural rearrangements or competing channels. It is used not only to calculate established reaction steps, but also to expand exploration of possible reaction space and determine which microscopic processes are genuinely worth further study under specific conditions.