A superstable 3p-block metal–organic framework platform towards prominent CO₂ and C1/C2-hydrocarbon uptake and separation performance and strong Lewis acid catalysis for CO₂ fixation

Abstract

Superstable 3p-block MOF platforms exhibit excellent gas uptake and separation performance, and prominent Lewis acid catalysis for CO2 fixation.

A High-Performance Zinc-Organic Framework with Accessible Open Metal Sites Catalyzes CO2 and Styrene Oxide into Styrene Carbonate under Mild Conditions

“…Porous MOFs as the multiple applied materials due to their structural diversity, high surface area, and surface modification have been widely used in chemical sensors, gas separation and storage, drug delivery, and catalysis fields . Also, many MOFs have been developed for the catalytic synthesis of cyclic carbonates through a CO 2 cycloaddition reaction because an MOF can provide Lewis acid–base sites for the activations of substrates of epoxides and CO 2 , which are regarded as the key steps for the facilitation of CO 2 cycloaddition to epoxides; , moreover, the MOF with an abundant porous structure and affinity to CO 2 also helps enrich the substrate CO 2 concentrations in the skeletons of MOFs and to react with epoxides on the active sites more efficiently . Also, the developed MOFs’ catalysts are commonly designed with a single ligand or mixed organic ligands .…”

“…14 Also, the developed MOFs' catalysts are commonly designed with a single ligand 15 or mixed organic ligands. 16 For the single ligand, the functional groups are relatively poor to result in the unsatisfied activity, 12 and the usage of mixed ligands can introduce more functional sites (e.g., −Br, −NO 2 , −OH, −NH 2 , and −COOH) to improve the catalytic activity in the CO 2 fixation process. Although multiple ligands possess multiple coordination sites, it is difficult to synthesize the geometric configuration of the framework as expected due to the influences of the coordination sites, which results in its structure unpredictability.…”

Geometry Mismatch and Reticular Chemistry: Strategies To Assemble Metal–Organic Frameworks with Non-default Topologies

“…In this sense, the assembly of tbab with Fe, Ga, In or Al trimers to yield Fe-MOF (Fe-fmz-tbab, Figure 12e) and SNNU-5, which exhibit a (3,6)-c net, fmz topology. 138,139 141 and MOF-950, made from benzene-1,3,5-tri-β-acryate (btac). 142 However, MOF-177 ( Figure 13b), 136 built from btb, and its many (> 20) functionalized 141 or extended analogs, 143 are all based on the "queen of MOFs", the qom net.…”

“…Another example of geometry mismatch in these systems is to replace btb with a ligand that has one shorter branch (e.g., tbab), such that upon assembly of the ligand with the metal trimer, the shorter branch length precludes formation of supertetrahedra. In this sense, the assembly of tbab with Fe, Ga, In or Al trimers to yield Fe-MOF (Fe- fmz -tbab, Figure e) and SNNU-5, which exhibit a (3,6)-c net, fmz topology. , …”

Controllable synthesis and spontaneous phase transition of photonic coordination polymer to produce a strong second-harmonic generation response

“…These reveal that the structure of 1-β can be retained below 455°C in accordance with the DSC. The thermal stability of 1-β was significantly higher than that of most CPs [29][30][31], and therefore it can be used to achieve practical needs [32].…”