Iodinated vs non-iodinated: Comparison of sorption selectivity by [Zn2(bdc)2dabco]n and superstructural 2-iodoterephtalate-based metal–organic framework

Abstract [Zn2(2-I-bdc)2dabco]n metal–organic framework (2-I-bdc = 2-iodoterephtalate, dabco = 1,8-diazabicyclooctane] (1) was prepared and structurally characterized as a superstructure of one of conventional [Zn2(bdc)2(dabco)]n (2) modicifactions. Selectivity of sorption of various organic substrates, as well as I2 uptake, was compared for 1 and 2, demonstrating remarkable differences which can be related to different patterns of non-covalent bonding of guest molecules in MOF pores.