A highly stable MOF with a rod SBU and a tetracar boxy late linker: unusual topology and CO_2 adsorption behaviour under ambient conditions

摘要

A Mn-based rod metal-organic framework (MOF), ROD-6, with a new Irk net is synthesized. It represents an unusual type of MOF topology containing both a 1-periodic secondary building unit (rod SBU) and a polytopic linker (here 1,3,6,8-tetrakis(p-benzoic acicd)pyrene), and also exhibits high stability (up to 485 ℃) and unusual CO_2 uptake behaviour and selectivity despite the lack of strong interacting sites, demonstrated by the low and increasing heat of adsorption.