Metal-organic framework materials are a topical family of nanoporous solids that have potential applications in molecular storage, separation and catalysis. This includes the important areas of hydrogen storage and carbon dioxide capture. We have demonstrated recently that the combination of inelastic neutron scattering and pair distribution function analysis of neutron scattering data is a powerful way of extracting information about guest molecules confined in such materials, and now we propose to new studies of some metal organic frameworks dosed with hydrogen or methanol. This will allows us to understand the systematics of their sorption properties for important practical applications and forms part of a broader research programme in materials synthesis and characterisation.