Highly stable porous polymer networks (PPNs) are synthesized through Yamamoto homocoupling reaction between tetrahedral monomers. Among those polymers, PPN-4 shows exceptionally high Langmuir surface area of 10063 m2 g−1 (SABET: 6461 g−1). It also exhibits ultra-high hydrogen (158 mg g−1), methane (389 and carbon dioxide (2121 g−1) storage capacities. These properties make it a perfect adsorbent for clean energy applications.

Gas guzzler: The introduction of polyamines in porous polymer networks results significant enhancement CO2-uptake capacities at low pressures. best substituted network was found to exhibit high adsorption enthalpies for CO2 and the largest selectivity (see graph) any material reported date. It also had outstanding physicochemical stability could be regenerated under mild conditions. Detailed facts importance specialist readers are published as ”Supporting Information”. Such documents...

Three porous polymer networks (PPNs) have been synthesized by the homocoupling of tetrahedral monomers. Like other hyper-cross-linked networks, these materials are insoluble in conventional solvents and exhibit high thermal chemical stability. Their porosity was confirmed N2 sorption isotherms at 77 K. One materials, PPN-3, has a Langmuir surface area 5323 m2 g−1. clean energy applications, especially H2, CH4, CO2 storage, as well CO2/CH4 separation, carefully investigated. Although PPN-1...

A porous polymer network (PPN) grafted with sulfonic acid (PPN-6-SO3H) and its lithium salt (PPN-6-SO3Li) exhibit significant increases in isosteric heats of CO2 adsorption CO2-uptake capacities. IAST calculations using single-component-isotherm data a 15/85 CO2/N2 ratio at 295 K 1 bar revealed that the sulfonate-grafted PPN-6 networks show exceptionally high selectivity for over N2 (155 414 PPN-6-SO3H PPN-6-SO3Li, respectively). Since these PPNs also possess ultrahigh physicochemical...

Porous coordination nanocages covered with alkyne groups are synthesized through judicious selection of the ligand and reaction conditions. The surface functionalization via click azide-terminated polyethylene glycol turns them into water-stable colloids, which exhibit controlled release an anticancer drug 5-fluorouracil.

A unique strategy, sequential linker installation (SLI), has been developed to construct multivariate MOFs with functional groups precisely positioned. PCN-700, a Zr-MOF eight-connected Zr6O4(OH)8(H2O)4 clusters, judiciously designed; the Zr6 clusters in this MOF are arranged such fashion that, by replacement of terminal OH(-)/H2O ligands, subsequent insertion linear dicarboxylate linkers is achieved. We demonstrate that distinct lengths and functionalities can be sequentially installed into...

Precise placement of multiple functional groups in a highly ordered metal-organic framework (MOF) platform allows the tailoring pore environment, which is required for advanced applications. To realize this, we present comprehensive study on linker installation method, stable MOF with coordinatively unsaturated Zr6 clusters was employed and linkers bearing different were postsynthetically installed. A Zr-MOF inherent missing sites, namely, PCN-700, initially constructed under kinetic...

Acetylene, an important petrochemical raw material, is very difficult to store safely under compression because of its highly explosive nature. Here we present a porous metal-organic framework named FJI-H8, with both suitable pore space and rich open metal sites, for efficient storage acetylene ambient conditions. Compared existing reports, FJI-H8 shows record-high gravimetric uptake 224 cm(3) (STP) g(-1) the second-highest volumetric 196 cm(-3) at 295 K 1 atm. Increasing temperature 308 has...

Metal-organic frameworks (MOFs) with open metal sites (OMSs) have been shown to preferentially adsorb unsaturated hydrocarbons such as C2H4 due the formation of π-complexation. However, adsorption capacity and selectivity might well be dampened under humid conditions because OMSs could easily poisoned in presence water vapor. C2H6-selective adsorbents less hydrophilic environments, on other hand, not only effectively minimize impact humidity separation but also directly produce high-purity...

Porous materials that can undergo pore-structure adjustment to better accommodate specific molecules are ideal for separation and purification. Here, we report a stable microporous metal-organic framework, JNU-1, featuring one-dimensional diamond-shaped channels with high density of open metal sites arranged on the surface cooperative binding acetylene. Together its framework flexibility appropriate pore geometry, JNU-1 exhibits an induced-fit behavior The continuous adaptation upon...

Flexible metal-organic frameworks (MOFs) are highly desirable in host-guest chemistry owing to their almost unlimited structural/functional diversities and stimuli-responsive pore architectures. Herein, we designed a flexible Zr-MOF system, namely PCN-700 series, for the realization of switchable catalysis cycloaddition reactions CO2 with epoxides. Their breathing behaviors were studied by successive single-crystal X-ray diffraction analyses. The amplitudes series modulated through...

Abstract Cooperative cluster metalation and ligand migration were performed on a Zr‐MOF, leading to the isolation of unique bimetallic MOFs based decanuclear Zr 6 M 4 (M=Ni, Co) clusters. The 2+ reacts with μ 3 ‐OH terminal H 2 O ligands an 8‐connected [Zr (OH) 8 (H O) ] form cluster. Along cluster, is observed in which Zr–carboxylate bond dissociates M–carboxylate bond. Single‐crystal single‐crystal transformation realized so that snapshots for cooperative processes are captured by...

Charge separation plays a crucial role in regulating photochemical properties and therefore warrants consideration designing photocatalysts. Metal-organic frameworks (MOFs) are emerging as promising candidates for heterogeneous photocatalysis due to their structural designability tunability of photon absorption. Herein, we report the design pyrazole-benzothiadiazole-pyrazole organic molecule bearing donor-acceptor-donor conjugated π-system fast charge separation. Further attempts integrate...

Interfacial charge transfer on the surface of heterogeneous photocatalysts dictates efficiency reactive oxygen species (ROS) generation and therefore aerobic oxidation reactions. Reticular chemistry in metal-organic frameworks (MOFs) allows for rational design donor-acceptor pairs to optimize interfacial charge-transfer kinetics. Herein, we report a series isostructural fcu-topology Ni8-MOFs (termed JNU-212, JNU-213, JNU-214, JNU-215) with linearly bridged bipyrazoles as organic linkers....

Machine learning is gaining momentum in the prediction and discovery of materials for specific applications. Given abundance metal–organic frameworks (MOFs), computational screening existing MOFs propane/propylene (C3H8/C3H6) separation could be equally important developing new MOFs. Herein, we report a machine learning-assisted strategy C3H8-selective from CoRE MOF database. Among four algorithms applied learning, random forest (RF) algorithm displays highest degree accuracy. We...

Abstract Research over the years has revealed immense potential of metal–organic frameworks (MOFs) for purifying olefins such as ethylene (C 2 H 4 ) and propylene 3 6 ). However, many these MOFs face challenges in terms economic viability, particularly production scalability, long‐term stability, process capability. In this study, we present a low‐cost easily scalable synthesis robust MOF material (JNU‐74a), featuring balanced surface polarity that allows one‐step C purification from...

A systematic exploration of the assembly Mo2(O2C-)4-based metal-organic molecular architectures structurally controlled by bridging angles rigid organic linkers has been performed. Twelve dicarboxylate ligands were designed to be different sizes with 0, 60, 90, and 120° while incorporating a variety nonbridging functional groups, these used as linkers. These assemble quadruply bonded Mo-Mo clusters acting nodes give 13 architectures, termed polygons/polyhedra metal cluster node arrangements...

Amine-grafted porous polymer networks were investigated for CO2 capture directly from air (400 ppm CO2, 78.96% N2, and 21% O2). Under these ultradilute conditions, PPN-6-CH2DETA has an extraordinarily high selectivity (3.6 × 1010) loading capacity (1.04 mol/kg) as calculated using ideal adsorption solution theory. In addition we have shown that the material outperforms other materials based on simulated breakthrough calculations, thus showing great potential to be used in direct applications.