Two heterovalent copper–organic frameworks with multiple secondary building units: high performance for gas adsorption and separation and I2 sorption and release
作者： Shuo Yao , Xiaodong Sun , Bing Liu , Rajamani Krishna , Guanghua Li
DOI: 10.1039/C6TA05142A
关键词: SBus 、 Organic chemistry 、 Sorption 、 Adsorption 、 Copper 、 Selectivity 、 Secondary building unit 、 Light hydrocarbons 、 DABCO 、 Chemical engineering 、 Chemistry
摘要: With the help of multiple secondary building unit (SBU) strategy, two novel heterovalent Cu–MOFs, [(Cu4I4)Cu4L4(DABCO)2]·16DMF (JLU-Liu31) and [(Cu4I4)Cu3L3(DABCO)(DMF)2]·18DMF (JLU-Liu32) [H2L = pyridine-3,5-bis(phenyl-4-carboxylic acid), DABCO 1,4-diazabicyclo[2.2.2]-octane], have been successfully solvothermally synthesized structurally characterized. Both compounds feature SBUs exhibit topologies. JLU-Liu31 possesses largest sustainable pore volume among MOFs based on Cu4I4 clusters. Moreover, adsorption behaviours desolvated material for some small gases (H2, O2, CO2, CH4, C2H6 C3H8) analysed in low pressure regions; meanwhile, it exhibits commendable selectivity O2 over N2, C3H8 CH4. The remarkable results illustrate that is a good candidate application separation light hydrocarbons. Additionally, JLU-Liu32 impressive performance I2 sorption release solvents.
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