Fundamental chemical physics research at the CRF is focused on basic science that impacts a broad range of forefront DOE energy missions. CRF researchers study the interactions of light and electric and magnetic fields with matter, the transfer of energy among electrons, atoms and molecules, the chemical processes that are driven by electrons or heat, the reactions of gas-phase species at interfaces, and complex gas-phase chemical reactivity under varied conditions (e.g., high pressure, confined spaces, and extreme temperature variations). The vision of the Gas Phase Chemical Physics program is to bring rigorous detail to the range of processes from individual interactions of atoms, molecules, electrons and photons, up to the complexity of coupled reactive systems of atoms, molecules, and interfaces.