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

[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.

Automated summary

In this study, [Zn2(2-I-bdc)2dabco]n metal-organic framework (MOF) was prepared and characterized, and its selectivity of sorption for various organic substrates and I2 uptake was compared with that of [Zn2(bdc)2(dabco)]n MOF. The remarkable differences observed between the two frameworks can be attributed to different patterns of non-covalent bonding of guest molecules in MOF pores.