Commensurate adsorption of hydrocarbons and alcohols in microporous metal-organic frameworks (MOF) is studied. Diffusion studies of hydrocarbons in microporous MOF materials represent a new topic in adsorption related research. Transport properties of guest molecules are investigated by measuring their transport diffusivity and surface permeability employing state-of-the-art and high temporal and spatial resolution IR microimaging and interference (IF) microscopy. The normal C2-C4 alcohols is found to exhibit commensurate adsorption in RPM3-Zn near room temperature. RPM4-Zn takes up a significantly less amount of benzene and o-xylene compared to RPM3-Zn. Adsorption of styrene in MIL-47 represents another very interesting case. With a CdC double bond in place of a C double bond C single bond in EB, styrene is longer and more rigid than EB.
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