The Journal of Physical Chemistry A (JPC A) ) publishes experimental, theoretical, and computational research on the physical chemistry of molecules, ions, radicals, clusters, and aerosols. JPC A emphasizes applications in the areas of atmospheric and environmental chemistry, aerosol processes, molecular geochemistry, combustion, astrochemistry, plasmas, cold molecules, catalysis, and energetic materials, among others. JPC A also publishes manuscripts that describe new tools or methods that are of broad interest to the physical chemistry community. If you are unsure about whether your manuscript fits within the scope of JPC A, please contact Deputy Editor T. Daniel Crawford ([email protected]) or Executive Editor Andrew Orr-Ewing ([email protected]).