Balancing flavors, constructing identities, and building a community: Rethinking diaspora and migration through the foodways of a Thai community in Washington, D.C.

Separating acetylene (C₂H₂) from other light hydrocarbons and carbon dioxide (CO₂) mixtures under mild conditions poses significant challenges due to the remarkably similar properties between C₂H₂ and those gases. For the goal of C₂H₂ separation, a F-functionalized organic linker, H₂F-PyIP = 2-fluorine-5-(4-pyridyl)isophthalic acid, was designed, and the corresponding metal-organic framework (MOF), {[Co₂(F-PyIP)₂DMF]·4H₂O}_n (1), was constructed. The MOF with open channels decorated by the active sites of the F groups revealed the exceptional C₂H₂ uptake and selectivity over CO₂, C₂H₄, and CH₄. The breakthrough experiments with different molar ratios of C₂H₂-C₂H₄, C₂H₂-CO₂, and other gas mixtures further verified superior separation capacity of the MOF. In particular, the dynamic separation time intervals for gas mixtures (C₂H₂/CO₂ = 1:1, 1:5, 1:10, and 1:20) fell in the range 30-44 min, highlighting the potential of the MOF for tackling the challenging C₂H₂/CO₂ separation process.